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Threatened & Endangered
About PLANTS Threatened & Endangered

Protected Plants for All Scientific Names
Jurisdiction = Federal and State
5752 records returned

Click on an accepted name below to view its PLANTS Profile with more information. Click on a place name in the reference list to view its T&E list, or click on the reference link to see published lists and learn more about each law. Protected plants that are synonyms retain their protected status, and are indented beneath the current PLANTS accepted name; common names are from PLANTS.

United States USFWS Endangered Species Program. 2014. All plants (January 2014). US Fish and Wildlife Service, Washington, DC.
Arizona Arizona Department of Agriculture. 2011. Protected native plants by categories. Arizona Department of Agriculture.
Arkansas Department of Arkansas Heritage, Inventory Research Program. 2001. Plants of special concern. Arkansas Natural Heritage Commission, Arkansas.
California Threatened and endangered plants (1 October 2011). California Department of Fish and Game.
Connecticut Connecticut Department of Environmental Protection. 1998. Endangered, threatened and special concern plants (20 October 2002). State of Connecticut, Connecticut.
Florida Coile, N.C., and M.A. Garland. 2003. Notes on Florida's endangered and threatened plants (29 January 2005). Florida Department of Agriculture & Consumer Services, Division of Plant Industry, Florida.
Georgia Wildlife Resources Division, Nongame Wildlifeand Natural Heritage Section. 2001. Protected plants of Georgia (20 October 2002). Georgia Department of Natural Resources, Georgia.
Illinois Endangered Species Protection Board. 1999. Endangered and threatened species list (20 October 2002). Illinois Department of Natural Resources, Illinois.
Indiana Division of Nature Preserves. 2002. Endangered, threatened, and rare vascular plant species documented from Indiana (20 October 2002). Indiana Department of Natural Resources, Indiana.
Iowa Parks, Recreation, and Preserves Division. 1994. Iowa's threatened and endangered species (20 October 2002). Iowa Department of Natural Resources, Iowa.
Kentucky Kentucky State Nature Preserves Commission. 2000. Endangered, threatened, and special concern species (20 October 2002). Kentucky State Nature Preserves Commission, Kentucky.
Maine Maine Natural Areas Program. 1999. Maine's rare, threatened, and endangered plants (20 October 2002). Maine Department of Conservation, Maine.
Maryland Maryland Natural Heritage Program. 1997. Rare, threatened and endangered plants of Maryland (20 October 2002). Maryland Department of Natural Resources, Maryland.
Massachusetts Natural Heritage and Endangered Species Program. 2004. Massachusetts list of endangered, threatened, and special concern species (29 January 2005). Massachusetts Division of Fisheries and Wildlife, Massachusetts.
Michigan Michigan Natural Features Inventory. 1999. Michigan's special plants (20 October 2002). Michigan Department of Natural Resources, Michigan.
Minnesota Division of Fish and Wildlife. 2001. Minnesota's list of endangered, threatened and special concern species (20 October 2002). Minnesota Department of Natural Resources, Minnesota.
Missouri Missouri Department of Conservation. 2001. Missouri species of conservation concern checklist (20 October 2002). Natural History Division, Missouri.
Nebraska Nongame and Endangered Species Program. 2002. Endangered and threatened wildlife (20 October 2002). Nebraska Game and Parks Commission, Nebraska.
Nevada Nevada Natural Heritage Program. 2001. Christmas trees, cacti, and yucca native to Nevada (20 October 2002). Department of Conservation and Natural Resources, Nevada.
Nevada Nevada Natural Heritage Program. 2001. State of Nevada list of fully protected plant species (20 October 2002). Department of Conservation and Natural Resources, Nevada.
New Hampshire New Hampshire Natural Heritage Inventory. 2002. Rare plant list for New Hampshire (20 October 2002). Division of Forests and Lands, New Hampshire.
New Jersey Office of Natural Lands Management. 2001. Special plants of New Jersey (20 October 2002). Department of Environmental Protection and Energy, New Jersey.
New Mexico Forestry and Resources Conservation Division. 1995. List of New Mexico state endangered plant species (20 October 2002). Energy, Minerals and Natural Resources Department, New Mexico.
New York Department of Environmental Conservation. 2000. Protected native plants (20 October 2002). Division of Land and Forests, New York.
North Carolina Plant Industry Division. 1998. List of North Carolina's endangered, threatened, and special concern plant species (20 October 2002). North Carolina Department of Agriculture and Consumer Services, North Carolina.
Ohio Division of Natural Areas and Preserves. 2001. Rare native Ohio plants, 2000-2001 status list (20 October 2002). Ohio Department of Natural Resources, Ohio.
Oregon Oregon Natural Heritage Information Center. 2004. Rare, threatened and endangered species of Oregon (5 May 2006). Oregon Natural Heritage Information Center, Oregon.
Pennsylvania Thompson, S.A. 1997. Vascular plants: review of status in Pennsylvania (20 October 2002). Department of Conservation and Natural Resources, Pennsylvania.
Puerto Rico Puerto Rico Heritage Program. 1995. Endangered, threatened and proposed plants of Puerto Rico (20 October 2002). Department of Natural Environmental Resources, Puerto Rico.
Rhode Island Enser, R.W. 2002. Rare native plants of Rhode Island (20 October 2002). Rhode Island Department of Environmental Management, Rhode Island.
Tennessee Tennessee Natural Heritage Program. 2002. Rare plant list (20 October 2002). Department of Environment and Conservation, Tennessee.
Texas Texas Parks and Wildlife Department. 2002. Texas threatened and endangered plants (20 October 2002). Texas Parks and Wildlife Department, Texas.
Vermont Nongame and Natural Heritage Program. 1999. Vermont's rare and uncommon native plants (20 October 2002). Vermont Department of Fish and Wildlife Nongame and Natural Heritage Program, Vermont.
Virginia Division of Natural Heritage. 2001. Rare vascular plants (20 October 2002). Virginia Department of Conservation and Recreation, Virginia.
Washington Washington Natural Heritage Program. 2002. Endangered, threatened and sensitive vascular plants of Washington (20 October 2002). Washington State Department of Natural Resources, Washington.
Wisconsin Wisconsin Department of Natural Resources. 2002. The working list: rare vascular plants (29 January 2006). Bureau of Endangered Resources, Wisconsin.

Symbol Scientific Name Common Name Federal Protected Status State Protected Status
ACCI3 Acrobolbus ciliatus (Mitt.) Schiffn. TN (SC)
ALOA Allocetraria oaksiana (Tuck.) Randlane & A. Thell
CEOA Cetraria oakesiana Tuck. MN (T)
ANSA7 Anastrophyllum saxicola (Schrad.) R.M. Schust. TN (SC)
ANTO3 Ancistrocactus tobuschii (W.T. Marshall) W.T. Marshall ex Backeb.
SCBRT Sclerocactus brevihamatus (Engelm.) D.R. Hunt ssp. tobuschii (W.T. Marshall) N.P. Taylor shorthook fishhook cactus E TX (E)
ARME6 Aronia melanocarpa (Michx.) Elliot IA (E)
ASHE4 Asplenium ×heteroresiliens W.H. Wagner (pro sp.) [heterochroum × resiliens] GA (T), NC (E)
BANU3 Bazzania nudicaulis A. Evans TN (T)
BOFL3 Bolboschoenus fluviatilis (Torr.) Soják MA (SC)
SCFL11 Schoenoplectus fluviatilis (Torr.) M.T. Strong river bulrush
SCFL Scirpus fluviatilis (Torr.) A. Gray KY (E), PA (R), TN (SC)
BONO Bolboschoenus novae-angliae (Britton) S.G. Sm. ME (PX)
SCNO5 Schoenoplectus novae-angliae (Britton) M.T. Strong New England bulrush
SCCY2 Scirpus cylindricus (Torr.) Britton CT (SC)
SCNO3 Scirpus novae-angliae Britton NY (E)
CAPA77 Caloplaca parvula Wetmore MN (E)
CAAE3 Carex ×aestivaliformis Mack. [aestivalis × gracillima] TN (E)
CAST55 Carex ×stenolepis Less. [saxatilis × vesicaria] ME (E)
CATR11 Carex ×trichina Fernald [tenuiflora × trisperma] ME (PX)
CEMA22 Cephaloziella massalongi (Spruce) Müll. Frib. TN (E)
CHPE14 Chamaesyce pergamena (Small) Small FL (T)
COOR12 Cololejeunea ornata A. Evans TN (T)
CYKE4 Cylindropuntia ×kelvinensis (V.E. Grant & K.A. Grant) P.V. Heath [fulgida × spinosior]
OPKE Opuntia ×kelvinensis V.E. Grant & K.A. Grant AZ (SR)
CYVI17 Cylindropuntia ×vivipara (Rose) F.M. Knuth (pro sp.) [arbuscula × versicolor]
OPVI4 Opuntia ×vivipara Rose (pro sp.) AZ (SR)
DIAB2 Dibaeis absoluta (Tuck.) Kalb & Gierl
BAAB2 Baeomyces absolutus Tuck. OH (E)
DITH3 Dicerandra ×thinicola H.A. Mill. (pro sp.) [densiflora × sp.] FL (E)
DRAP3 Drepanolejeunea appalachiana R.M. Schust. TN (SC)
DRAU5 Dryopteris ×australis (Wherry) Small (pro sp.) [celsa × ludoviciana] TN (SC)
EQFE Equisetum ×ferrissii Clute (pro sp.) [hyemale × laevigatum] PA (E)
ERDES Eriastrum densifolium (Benth.) H. Mason ssp. sanctorum (Milliken) H. Mason E CA (E)
ERPE10 Eriogonum pelinophilum Reveal E
FROB2 Frullania obcordata (Lehm. & Lindenb.) Lehm. & Lindenb. TN (SC)
GYLA3 Gymnomitrion laceratum (Steph.) Horik. TN (T)
HAGR13 Harrisia gracilis (Mill.) Britton [excluded] FL (E)
HEVE3 Helianthus ×verticillatus E.E. Watson (pro sp.) [angustifolius × grosseserratus] TN (E)
LEBL Lejeunea blomquistii R.M. Schust. TN (SC)
LECA63 Lejeunea cardoti Steph. TN (SC)
LESH9 Lejeunea sharpii (R.M. Schust.) R.M. Schust. TN (E)
LECU11 Leptoscyphus cuneifolius (Hook.) Mitt. TN (E)
LENU Lespedeza ×nuttallii Darl. (pro sp.) [hirta × violacea] ME (PX)
LOAP3 Lophocolea appalachiana R.M. Schust. TN (SC)
MAASL Machaeranthera asteroides (Torr.) Greene var. lagunensis (D.D. Keck) B.L. Turner CA (R)
MAFU4 Marsupella funckii (F. Weber & D. Mohr) Dumort. TN (E)
MEAE2 Megaceros aenigmaticus R.M. Schust. TN (SC)
MEUN3 Metzgeria uncigera A. Evans TN (SC)
NERO Nesogenes rotensis Fosberg & D.R. Herbst E
OSMA Osmoxylon mariannense (Kaneh.) Fosberg & Sachet E
PEIN16 Pedinophyllum interruptum (Nees) Kaal. TN (SC)
PESI4 Pediocactus sileri (Engelm. ex J.M. Coult.) L.D. Benson T AZ (HS)
PLCA18 Plagiochila caduciloba H.L. Blomq. NC (E)
PLCO22 Plagiochila corniculata (Dumort.) Dumort. TN (SC)
PRMA8 Prenanthes ×mainensis A. Gray (pro sp.) [racemosa × trifoliolata] ME (PX)
PRAY Pritchardia aylmer-robinsonii H. St. John E
PRREA Pritchardia remota Becc. ssp. aylmer-robinsonii (H. St. John) R.W. Read, ined. Nihoa pritchardia
PRNA2 Pritchardia napaliensis H. St. John E
PRREN Pritchardia remota Becc. ssp. napaliensis (H. St. John) R.W. Read, ined. Nihoa pritchardia
PUSU2 Purshia ×subintegra (Kearney) Henrickson [pinkavae × stansburiana] E AZ (HS)
QUMO4 Quercus montana Willd. IL (T), ME (T)
QUPR2 Quercus prinus L. chestnut oak
RAVO2 Radula voluta Taylor TN (SC)
SCLA16 Schiedea laui W.L. Wagner & Weller E
SCST10 Schoenoplectus ×steinmetzii (Fernald) S.G. Sm. [heterochaetus × tabernaemontani] ME (T)
SPPE9 Sphenolobopsis pearsonii (Spruce) R.M. Schust. TN (E)
STKA4 Stenogyne kauaulaensis K.R. Wood & H. Oppenh. E
VIPR4 Viola ×primulifolia L. (pro sp.) [lanceolata × macloskeyi] IL (E), IN (R), NY (T), OH (E)
HECO13 Hedyotis cookiana (Cham. & Schltdl.) Steud. 'awiwi E
CHCEK Chamaesyce celastroides (Boiss.) Croizat & O. Deg. var. kaenana (Sherff) O. Deg. & I. Deg. 'ekoko E
POSC9 Portulaca sclerocarpa A. Gray 'ihi makole E
RUDE8 Rubus depavitus L.H. Bailey Aberdeen dewberry IN (X)
THAU Thelypteris augescens (Link) Munz & I.M. Johnst. abrupttip maiden fern FL (T)
ISAC Isoetes acadiensis Kott Acadian quillwort ME (T), MA (E)
EPAC Epidendrum acunae Dressler Acuna's star orchid FL (E)
APHY Aplectrum hyemale (Muhl. ex Willd.) Torr. Adam and Eve CT (SC), MA (E), NJ (E), NY (E), PA (R), VT (T)
DIOVA Dichanthelium ovale (Elliot) Gould & C.A. Clark var. addisonii (Nash) Gould & C.A. Clark Addison's rosette grass
PACO20 Panicum commonsianum Ashe OH (E), PA (X)
PACOA3 Panicum commonsianum Ashe var. addisonii (Nash) Pohl IN (R)
SAMA3 Sanicula maritima Kellogg ex S. Watson adobe snakeroot CA (R)
LOCO8 Lomatium cookii J.S. Kagan agate desertparsley E OR (E)
GEQU2 Gentianella quinquefolia (L.) Small agueweed ME (PX), MD (E), MI (T), NY (EV), VT (T)
GEQUQ Gentianella quinquefolia (L.) Small ssp. quinquefolia agueweed
GEQU3 Gentiana quinquefolia L. CT (E)
PEAJ Perityle ajoensis T.K. Todsen Ajo rockdaisy AZ (SR)
RHAL5 Rhododendron alabamense Rehder Alabama azalea FL (E)
CRAL3 Croton alabamensis E.A. Sm. ex Chapm. Alabama croton TN (PX, E)
CLSO3 Clematis socialis Kral Alabama leather flower E GA (E)
CHAL5 Cheilanthes alabamensis (Buckley) Kunze Alabama lipfern KY (E)
THPIA Thelypteris pilosa (M. Martens & Galeotti) Crawford var. alabamensis Crawford Alabama maiden fern T
MAAL6 Matelea alabamensis (Vail) Woodson Alabama milkvine FL (E), GA (T)
SARUA Sarracenia rubra Walter ssp. alabamensis (F.W. Case & R.B. Case) Schnell Alabama pitcherplant E
NEAL Neviusia alabamensis A. Gray Alabama snow-wreath AR (T), GA (T), TN (T)
BESC Berchemia scandens (Hill) K. Koch Alabama supplejack IL (E), KY (T)
SIAL13 Sideroxylon alachuense L.C. Anderson Alachua bully FL (E)
ARPA21 Arctostaphylos pallida Eastw. Alameda manzanita T CA (E)
MEMU4 Melicope mucronulata (H. St. John) T.G. Hartley & B.C. Stone alani E
RHAL Rhamnus alnifolia L'Hér. alderleaf buckthorn IL (E), TN (E)
PLPR Plantago princeps Cham. & Schltdl. ale E
POAL6 Polystichum aleuticum C. Chr. Aleutian holly fern E
ADAL Adiantum aleuticum (Rupr.) Paris Aleutian maidenhair ME (E)
HENIT Helianthus niveus (Benth.) Brandegee ssp. tephrodes (A. Gray) Heiser Algodones sunflower CA (E)
ERAL3 Erigeron aliceae Howell Alice Eastwood's fleabane WA (S)
RACY Ranunculus cymbalaria Pursh alkali buttercup CT (E), IL (E), MI (T), NJ (E), NY (E), RI (H), WI (T)
CUDO3 Cusickiella douglasii (A. Gray) Rollins alkali cusickiella WA (T)
BOAC Boykinia aconitifolia Nutt. Allegheny brookfoam KY (T)
MIRIC Mimulus ringens L. var. colpophilus Fernald Allegheny monkeyflower ME (SC)
RAAL2 Ranunculus allegheniensis Britton Allegheny Mountain buttercup NJ (E), RI (SC), VT (T)
THMO2 Thermopsis mollis (Michx.) M.A. Curtis ex A. Gray Allegheny Mountain goldenbanner KY (E)
PRAL5 Prunus alleghaniensis Porter Allegheny plum CT (SC), MD (T), NJ (E), PA (T)
HYTE9 Hylotelephium telephioides (Michx.) H. Ohba Allegheny stonecrop
SETE Sedum telephioides Michx. IN (T), KY (T), NY (E), PA (R)
ADFU Adlumia fungosa (Aiton) Greene ex Britton, Sterns & Poggenb. allegheny vine IN (X), KY (E), ME (T), MD (T), MA (T), NH (T), OH (T), RI (E), TN (T)
PAPR7 Pachysandra procumbens Michx. Allegheny-spurge FL (E), IN (E)
THAL8 Thuidium allenii Austin Allen's thuidium moss OH (PRX)
OMSU Omalotheca supina (L.) DC. alpine arctic cudweed ME (E)
GNSU2 Gnaphalium supinum L. NH (E)
LOPR Loiseleuria procumbens (L.) Desv. alpine azalea ME (T), NH (T), NY (E), WA (S)
ARAL2 Arctostaphylos alpina (L.) Spreng. alpine bearberry ME (T), NH (T)
POVI3 Polygonum viviparum L. alpine bistort ME (E), MI (T), NH (T)
CABE Cardamine bellidifolia L. alpine bittercress ME (E), NH (E)
POAL2 Poa alpina L. alpine bluegrass MI (T)
TRAL7 Trichophorum alpinum (L.) Pers. alpine bulrush
SCHU2 Scirpus hudsonianus (Michx.) Fernald CT (SC), RI (H)
CYFA3 Cyperus fauriei Kük. alpine flatsedge
MAFA7 Mariscus fauriei (Kük.) T. Koyama E
ASAL7 Astragalus alpinus L. alpine milkvetch ME (SC), MN (E), WI (E)
OXDI3 Oxyria digyna (L.) Hill alpine mountainsorrel NH (T)
POAL8 Potamogeton alpinus Balbis alpine pondweed NH (T), NJ (E), NY (T), PA (X)
PRBO2 Prenanthes boottii (DC.) A. Gray alpine rattlesnakeroot ME (E), NH (T), NY (E), VT (E)
DOALM Dodecatheon alpinum (A. Gray) Greene ssp. majus H.J. Thomp. alpine shootingstar AZ (SR)
ANMOA3 Anthoxanthum monticola (Bigelow) Veldkamp ssp. alpinum (Sw. ex Willd.) Soreng alpine sweetgrass
HIAL3 Hierochloe alpina (Sw. ex Willd.) Roem. & Schult. ME (T), VT (T)
ANMOM2 Anthoxanthum monticola (Bigelow) Veldkamp ssp. monticola alpine sweetgrass
ANMOO Anthoxanthum monticola (Bigelow) Veldkamp ssp. orthantha (T.J. Sørensen) G. Tucker NY (E)
HEAL Hedysarum alpinum L. alpine sweetvetch ME (SC), MI (E)
PHAL2 Phleum alpinum L. alpine timothy ME (T), MI (PREX), NH (T)
VILA10 Viola labradorica Schrank alpine violet
VICO2 Viola conspersa Rchb. IL (T)
WOAL Woodsia alpina (Bolton) Gray alpine woodsia ME (T), MI (T), NY (E), VT (E)
FEAL Festuca altaica Trin. Altai fescue
FESC Festuca scabrella Torr. ex Hook. MI (T)
MYAL3 Myriophyllum alterniflorum DC. alternateflower watermilfoil CT (E), MA (E), NY (T), RI (H)
COAL2 Cornus alternifolia L. f. alternateleaf dogwood FL (E)
NIMO Nitrophila mohavensis Munz & Roos Amargosa niterwort E CA (E), NV (FP)
LEPA3 Leptochloa panicoides (J. Presl) Hitchc. Amazon sprangletop IN (E)
VEWO2 Veronica wormskjoldii Roem. & Schult. American alpine speedwell ME (E), NH (E)
BECA2 Berberis canadensis Mill. American barberry IL (E), IN (E), KY (E), MD (E, X), PA (X), TN (SC)
TIAMH Tilia americana L. var. heterophylla (Vent.) Loudon American basswood
TIHE Tilia heterophylla Vent. IL (E)
AMBR Ammophila breviligulata Fernald American beachgrass IL (E), MN (T), OH (T), PA (T)
DIAM Diarrhena americana P. Beauv. American beakgrain MD (E), MI (T), WI (E)
CAAM2 Callicarpa americana L. American beautyberry MD (E, X)
CARO3 Cardamine rotundifolia Michx. American bittercress NJ (E), NY (E), TN (SC)
CESC Celastrus scandens L. American bittersweet NY (EV)
RIAM2 Ribes americanum Mill. American black currant MD (E, X)
STTR Staphylea trifolia L. American bladdernut FL (E), NH (T)
BUAM Buchnera americana L. American bluehearts IN (E), MD (E, X), MI (PREX), NY (E), OH (T), PA (X)
SPAM Sparganium americanum Nutt. American bur-reed IL (E)
ERHIM2 Erechtites hieraciifolius (L.) Raf. ex DC. var. megalocarpus (Fernald) Cronquist American burnweed
ERHIM Erechtites hieraciifolia (L.) Raf. ex DC. var. megalocarpa (Fernald) Cronquist American burnweed NY (E)
COAM Conopholis americana (L.) Wallr. American cancer-root NH (T), NY (EV), RI (SC)
CADE12 Castanea dentata (Marshall) Borkh. American chestnut KY (E), ME (SC), MI (E), TN (SC)
LYPA3 Lygodium palmatum (Bernh.) Sw. American climbing fern CT (SC), IN (E), MD (T), MA (SC), MI (E), NY (E), PA (R), RI (SC), VT (E)
FRCA2 Frasera caroliniensis Walter American columbo NY (T), PA (E)
VIOPA2 Viburnum opulus L. var. americanum Aiton American cranberrybush IN (E), OH (T)
VITR8 Viburnum trilobum Marshall PA (R)
SAST Sacciolepis striata (L.) Nash American cupscale MD (E), NJ (E), TN (SC)
DRPA2 Dracocephalum parviflorum Nutt. American dragonhead NY (E), VT (T)
LEMO8 Leymus mollis (Trin.) Pilg. American dunegrass MA (E)
VAAM3 Vallisneria americana Michx. American eelgrass KY (SC)
HEPU Hedeoma pulegioides (L.) Pers. American false pennyroyal RI (SC)
HOIN Hottonia inflata Elliot American featherfoil CT (SC), IN (T), ME (T), MD (E), NJ (E), NY (T), OH (PRX), PA (X), RI (SC), TN (SC)
LOCA7 Lonicera canadensis W. Bartram ex Marshall American fly honeysuckle IN (X), MD (E), NJ (E), TN (SC)
PAQU Panax quinquefolius L. American ginseng CT (SC), ME (E), MA (SC), MI (T), NH (T), NY (EV), NC (SC), PA (V), RI (E), TN (SC, CE)
TRLA14 Trollius laxus Salisb. American globeflower CT (E), OH (E), PA (E)
TRLAL Trollius laxus Salisb. ssp. laxus American globeflower NJ (E), NY (R)
CHAM2 Chrysosplenium americanum Schwein. ex Hook. American golden saxifrage IN (T), KY (E)
AMBRC Amphicarpaea bracteata (L.) Fernald var. comosa (L.) Fernald American hogpeanut NH (T)
ILOP Ilex opaca Aiton American holly NY (EV), PA (T)
EUIP Euphorbia ipecacuanhae L. American ipecac NY (E), PA (E)
GIST5 Gillenia stipulata (Muhl. ex Willd.) Baill. American ipecac
POST5 Porteranthus stipulatus (Muhl. ex Willd.) Britton MD (E, X)
COMA19 Convallaria majuscula Greene American lily-of-the-valley
COMO4 Convallaria montana Raf. KY (E)
PHLE5 Phryma leptostachya L. American lopseed ME (PX)
NELU Nelumbo lutea Willd. American lotus MI (T), NJ (E), PA (E)
GLGR Glyceria grandis S. Watson American mannagrass IN (X), MD (E), NJ (E), TN (PX, E)
HYAM Hydrocotyle americana L. American marshpennywort IN (E), KY (E), TN (E)
MIEF Milium effusum L. American milletgrass CT (SC), IL (E), IN (R), MA (T), NJ (E), TN (SC)
SOAM3 Sorbus americana Marshall American mountain ash IL (E)
PIAM Pilularia americana A. Braun American pillwort TN (SC), WA (S)
PRAM Prunus americana Marshall American plum NH (T), VT (T)
CRAC3 Cryptogramma acrostichoides R. Br. American rockbrake MI (E)
CAED Cakile edentula (Bigelow) Hook. American searocket IL (T), PA (R)
SEHE3 Senna hebecarpa (Fernald) Irwin & Barneby American senna CT (SC), MA (E), RI (H), VT (T)
CAHE9 Cassia hebecarpa Fernald NH (E)
LIUN Littorella uniflora (L.) Asch. American shoreweed ME (SC), NY (E)
BESY Beckmannia syzigachne (Steud.) Fernald American sloughgrass IL (E), MI (T)
COOB2 Cotinus obovatus Raf. American smoketree TN (SC)
STAM4 Styrax americanus Lam. American snowbell IL (T), OH (PRX)
VEAM2 Veronica americana Schwein. ex Benth. American speedwell IL (E), IN (X), KY (H), TN (SC)
ARRA Aralia racemosa L. American spikenard RI (SC)
LISP2 Limnobium spongia (Bosc) Rich. ex Steud. American spongeplant KY (T), MD (E)
HADE2 Halenia deflexa (Sm.) Griseb. American spurred gentian MA (E), NH (E), NY (E)
HADEA Hackelia deflexa (Wahlenb.) Opiz var. americana (A. Gray) Fernald & I.M. Johnst. American stickseed NH (E), NY (E), VT (T)
HAAM2 Hackelia americana (A. Gray) Fernald IL (E)
LILA2 Lithospermum latifolium Michx. American stoneseed MD (E), PA (E)
PLOC Platanus occidentalis L. American sycamore ME (PX)
VIAM Vicia americana Muhl. ex Willd. American vetch MD (E, X)
STFO Stellaria fontinalis (Short & Peter) B.L. Rob. American water starwort KY (T)
ARFO4 Arenaria fontinalis (Short & Peter) Shinners TN (T)
JUAM Justicia americana (L.) Vahl American water-willow IA (E), MI (T)
SUAQA2 Subularia aquatica L. var. americana (G. Mulligan & Calder) B. Boivin American waterawlwort NY (E)
ELAM3 Elatine americana (Pursh) Arn. American waterwort MA (E), NY (E), PA (E)
ELTRA4 Elatine triandra Schkuhr var. americana (Pursh) Fassett RI (SC)
NYODT Nymphaea odorata Aiton ssp. tuberosa (Paine) Wiersma & Hellquist American white waterlily CT (SC)
PYAM Pyrola americana Sweet American wintergreen KY (H), TN (E)
PYROA Pyrola rotundifolia L. var. americana (Sweet) Fernald IN (R)
WIFR Wisteria frutescens (L.) Poir. American wisteria MI (T)
WIMA Wisteria macrostachya (Torr. & A. Gray) Nutt. ex B.L. Rob. & Fernald IN (R)
BAOR Barbarea orthoceras Ledeb. American yellowrocket ME (PX), NH (E)
TOAM3 Tortula ammonsiana H.A. Crum & L.E. Anderson Ammons' tortula moss NC (E), TN (E)
ANRUR Andreaea rupestris Hedw. var. rupestris andreaea moss OH (PRX)
NEAN Neraudia angulata Cowan angularfruit ma'oloa E
MAGO Matelea gonocarpos (Walter) Shinners angularfruit milkvine FL (T)
SOOD Solidago odora Aiton anisescented goldenrod NH (T), OH (T), VT (T)
FIAN Fimbristylis annua (All.) Roem. & Schult. annual fimbry PA (T)
SULI Suaeda linearis (Elliot) Moq. annual seepweed NY (E)
MOFO Montia fontana L. annual water minerslettuce ME (SC)
ZIAQ Zizania aquatica L. annual wildrice OH (T), PA (R), RI (SC)
ZIAQA2 Zizania aquatica L. var. aquatica annual wildrice MI (T)
SYAN3 Symphyotrichum anticostense (Fernald) G.L. Nesom Anticosti Island aster ME (E)
OEDEH Oenothera deltoides Torr. & Frém. ssp. howellii (Munz) W. Klein Antioch Dunes evening primrose E CA (E)
ERHEA4 Eriogonum heermannii Durand & Hilg. var. apachense (Reveal) Reveal Apache buckwheat
ERAP3 Eriogonum apachense Reveal AZ (SR)
ASNU7 Astragalus nutriosensis S.C. Sand. Apache milkvetch AZ (SR)
APCH Apacheria chiricahuensis C.T. Mason apachebush AZ (SR)
EUSP4 Eurybia spinulosa (Chapm.) G.L. Nesom Apalachicola aster
ASSP12 Aster spinulosus Chapm. FL (E)
COGL9 Conradina glabra Shinners Apalachicola false rosemary E FL (E)
BAME Baptisia megacarpa Chapm. ex Torr. & A. Gray Apalachicola wild indigo FL (E)
GERA2 Geum radiatum Michx. Appalachian avens E NC (SC, E), TN (E)
WAFR Waldsteinia fragarioides (Michx.) Tratt. Appalachian barren strawberry CT (SC), IL (E), IN (R), ME (E), MA (SC), NH (T)
TRBO Trichomanes boschianum Sturm Appalachian bristle fern AR (T), IL (E), IN (E), NC (T), OH (E), TN (T)
ACRU14 Actaea rubifolia (Kearney) Kartesz Appalachian bugbane
CIRU Cimicifuga rubifolia Kearney IL (T), IN (E), KY (T), TN (T)
VEPA3 Veratrum parviflorum Michx. Appalachian bunchflower
MEPA2 Melanthium parviflorum (Michx.) S. Watson KY (E)
WOAP Woodsia appalachiana T.M.C. Taylor Appalachian cliff fern KY (E)
WOSCA2 Woodsia scopulina D.C. Eaton ssp. appalachiana (T.M.C. Taylor) Windham TN (SC)
HUAP Huperzia appalachiana Beitel & Mickel Appalachian clubmoss ME (SC), MI (E), NY (T), TN (T)
GEAU3 Gentiana austromontana Pringle & Sharp Appalachian gentian TN (SC)
RIRO2 Ribes rotundifolium Michx. Appalachian gooseberry CT (SC)
GYAP Gymnocarpium appalachianum Pryer Appalachian oakfern NC (E), OH (PRX), PA (E)
ISAP Isoetes appalachiana D.F. Brunton & D.M. Britton Appalachian quillwort FL (E)
ISEN Isoetes engelmannii A. Braun Appalachian quillwort IN (E), MI (E), OH (E), RI (SC), VT (T)
SACA27 Sabatia capitata (Raf.) S.F. Blake Appalachian rose gentian GA (R), TN (E)
SIWA Silphium wasiotense M. Medley Appalachian rosinweed KY (SC), TN (E)
CAAP5 Carex appalachica J. Webber & P.W. Ball Appalachian sedge KY (T)
VIAP2 Vittaria appalachiana Farrar & Mickel Appalachian shoestring fern IN (R), NY (E), PA (T)
LEAP4 Leptogium appalachense Nyl. Appalachian skin lichen MN (E)
MIGL5 Minuartia glabra (Michx.) Mattf. Appalachian stitchwort KY (T), ME (SC), MD (E), NH (T), NY (T), PA (T)
ARGL14 Arenaria glabra Michx. CT (T)
ARGRG Arenaria groenlandica (Retz.) Spreng. var. glabra (Michx.) Fernald RI (T)
ASAP Astragalus applegatei M. Peck Applegate's milkvetch E OR (E)
SCAR2 Schoepfia arenaria Britton arana T
THOC2 Thuja occidentalis L. arborvitae CT (T), IL (T), IN (E), KY (T), MD (T), MA (E), NJ (E), TN (SC)
HYED Hypericum edisonianum (Small) P. Adams & N. Robson Arcadian St. Johnswort FL (E)
ERNAE Eritrichium nanum (Vill.) Schrad. ex Gaudin var. elongatum (Rydb.) Cronquist arctic alpine forget-me-not WA (S)
BRKA2 Bromus kalmii A. Gray arctic brome ME (PX), MD (E), NH (E)
SOMUA Solidago multiradiata Aiton var. arctica (DC.) Fernald arctic goldenrod NY (T)
PEFRP Petasites frigidus (L.) Fr. var. palmatus (Aiton) Cronquist arctic sweet coltsfoot CT (T), MA (E), NH (E), NY (E), VT (T)
MATE2 Malaxis tenuis (S. Watson) Ames Arizona adder's-mouth orchid AZ (SR)
ACAR18 Actaea arizonica (S. Watson) J. Compton Arizona bugbane
CIAR Cimicifuga arizonica S. Watson AZ (HS)
AGAR8 Agave ×arizonica Gentry & J.Z. Weber (pro sp.) [chrysantha × toumeyana] Arizona century plant
AGAR3 Agave arizonica Gentry & J.Z. Weber E AZ (HS)
CLHIA Clematis hirsutissima Pursh var. arizonica (A. Heller) Erickson Arizona clematis AZ (HS)
HEAR22 Hesperocyparis arizonica (Greene) Bartel Arizona cypress
CUAR Cupressus arizonica Greene Arizona cypress NV (CY)
ECCOA Echinocereus coccineus Engelm. var. arizonicus (Rose ex Orcutt) D.J. Ferguson Arizona hedgehog cactus
ECTRA Echinocereus triglochidiatus Engelm. var. arizonicus (Rose ex Orcutt) L.D. Benson E AZ (HS)
ECTRN Echinocereus triglochidiatus Engelm. var. neomexicanus auct. non (Standl.) W.T. Marshall AZ (SR)
CYAR14 Cylindropuntia arbuscula (Engelm.) F.M. Knuth Arizona pencil cholla
OPAR2 Opuntia arbuscula Engelm. AZ (SR)
VACAP Vauquelinia californica (Torr.) Sarg. ssp. pauciflora (Standl.) Hess & Henrickson Arizona rosewood
VAPA8 Vauquelinia pauciflora Standl. AZ (SR)
ESVIA Escobaria vivipara (Nutt.) Buxbaum var. arizonica (Engelm.) D.R. Hunt Arizona spinystar NV (CY)
COVIA2 Coryphantha vivipara (Nutt.) Britton & Rose var. arizonica (Engelm.) W.T. Marshall AZ (SR)
GLAR Glyceria arkansana Fernald Arkansas mannagrass IL (E)
THAR Thalictrum arkansanum B. Boivin Arkansas meadow-rue AR (T)
QUAR2 Quercus arkansana Sarg. Arkansas oak FL (T)
CAAR5 Carex arkansana (L.H. Bailey) L.H. Bailey Arkansas sedge IL (E)
SYOB Symphyotrichum oblongifolium (Nutt.) G.L. Nesom aromatic aster
ASOB2 Aster oblongifolius Nutt. IN (R), OH (T)
SEBI9 Sebastiania bilocularis S. Watson arrow poision plant
SABI4 Sapium biloculare (S. Watson) Pax AZ (SR)
ARPU8 Aristida purpurascens Poir. arrowfeather threeawn CT (SC), MA (T), PA (T), RI (T)
ARPUV Aristida purpurascens Poir. var. virgata (Trin.) Allred arrowfeather threeawn
ARVI5 Aristida virgata Trin. MD (E)
CRSA4 Crotalaria sagittalis L. arrowhead rattlebox NH (E), NY (E), RI (T), VT (T)
PEFRS5 Petasites frigidus (L.) Fr. var. sagittatus (Banks ex Pursh) Cherniawsky arrowleaf sweet coltsfoot
PESA5 Petasites sagittatus (Banks ex Pursh) A. Gray MI (T), WI (T)
VISAO Viola sagittata Aiton var. ovata (Nutt.) Torr. & A. Gray arrowleaf violet
VIFI Viola fimbriatula Sm. WI (E)
SACU Sagittaria cuneata Sheldon arumleaf arrowhead CT (SC), MA (T), NH (T), NJ (E), OH (T)
MELE3 Mentzelia leucophylla Brandegee Ash Meadows blazingstar T NV (FP)
GRFR Grindelia fraxinopratensis Reveal & Beatley Ash Meadows gumweed T NV (FP)
ASPH Astragalus phoenix Barneby Ash Meadows milkvetch T NV (FP)
CLAS2 Clinopodium ashei (Weath.) Small Ashe's calamint
CAAS9 Calamintha ashei (Weath.) Shinners FL (T), GA (T)
MAAS Magnolia ashei Weath. Ashe's magnolia FL (E)
CACI6 Castilleja cinerea A. Gray ashgray Indian paintbrush T
CICI Cirsium ciliolatum (L.F. Hend.) J.T. Howell Ashland thistle CA (E)
THFR3 Thermopsis fraxinifolia Nutt. ex M.A. Curtis ashleaf goldenbanner TN (T)
THTE8 Thymophylla tephroleuca (S.F. Blake) Strother ashy pricklyleaf E TX (E)
HEMO2 Helianthus mollis Lam. ashy sunflower MI (T), OH (T)
INOX Indigofera oxycarpa Desv. Asian indigo
INKE Indigofera keyensis Small FL (E)
GYJE Gymnocarpium jessoense (Koidzumi) Koidzumi Asian oakfern MI (E)
CAAS2 Carex assiniboinensis W. Boott Assiniboia sedge MI (T)
OCBL Oclemena ×blakei (Porter) G.L. Nesom [acuminata × nemoralis] aster
ASBL7 Aster blakei (Porter) House CT (E)
ZEAT Zephyranthes atamasca (L.) Herb. Atamasco lily FL (T), MD (E)
CASC5 Camassia scilloides (Raf.) Cory Atlantic camas MI (T), NC (T), PA (E), WI (E)
SOAR Solidago arguta Aiton Atlantic goldenrod OH (PRX)
SOARA Solidago arguta Aiton var. arguta Atlantic goldenrod
SOTA2 Solidago tarda Mack. TN (SC)
GLOB Glyceria obtusa (Muhl.) Trin. Atlantic mannagrass PA (E)
PHOPI Physocarpus opulifolius (L.) Maxim. var. intermedius (Rydb.) B.L. Rob. Atlantic ninebark NY (E)
CLMA4 Clitoria mariana L. Atlantic pigeonwings NJ (E), PA (E)
CHTH2 Chamaecyparis thyoides (L.) Britton, Sterns & Poggenb. Atlantic white cedar GA (R), ME (SC), NY (R), PA (X)
PHAR2 Phacelia argillacea N.D. Atwood Attwood's phacelia E
ERTHA2 Eriogonum thompsoniae S. Watson var. atwoodii Reveal Atwood's buckwheat AZ (SR)
ELNY Ellisia nyctelea (L.) L. Aunt Lucy NJ (E), PA (T)
LIAU2 Listera auriculata Wiegand auricled twayblade ME (T), MN (E), NH (E), NY (E), VT (E), WI (E)
PODOA2 Polygonum douglasii Greene ssp. austiniae (Greene) A.E. Murray Austin knotweed
POAU2 Polygonum austiniae Greene WA (S)
SPAU70 Sphagnum austinii Sull. Austin's sphagnum NJ (E)
MYPA Myrcia paganii Krug & Urb. ausu E PR (E)
POAU Poa autumnalis Muhl. ex Elliot autumn bluegrass NJ (E), PA (E)
COOD7 Corallorhiza odontorhiza (Willd.) Poir. autumn coralroot FL (E)
COOD Corallorrhiza odontorhiza (Willd.) Poir., orth. var. ME (E), MA (SC), NH (E), NY (EV), RI (E), VT (T)
GEAM3 Gentianella amarella (L.) Böerner autumn dwarf gentian ME (E), VT (T)
SOSP4 Solidago sphacelata Raf. autumn goldenrod OH (E)
ALST Allium stellatum Fraser ex Ker Gawl. autumn onion TN (E)
SASE2 Salix serissima (L.H. Bailey) Fernald autumn willow CT (SC), IL (E), IN (T), PA (T)
MEAD Melicope adscendens (H. St. John & Hume) T.G. Hartley & B.C. Stone auwahi melicope E
CRAV Crotalaria avonensis DeLaney & Wunderlin Avon Park rattlebox E FL (E)
TERE3 Tetramolopium remyi (A. Gray) Hillebr. Awalua Ridge tetramolopium E
SASU Sagittaria subulata (L.) Buchenau awl-leaf arrowhead CT (SC), PA (R), RI (H)
SASUS Sagittaria subulata (L.) Buchenau var. subulata MA (E)
LIAR6 Lipocarpha aristulata (Coville) G. Tucker awned halfchaff sedge WA (S)
PYSE2 Pycnanthemum setosum Nutt. awned mountainmint MD (T)
TUGR Tuctoria greenei (Vasey) J. Reeder awnless spiralgrass E CA (R)
RHAR Rhexia aristosa Britton awnpetal meadowbeauty NJ (E), NC (T)
MEAC Mecardonia acuminata (Walter) Small axilflower MD (E)
ALFO3 Aliciella formosa (Greene ex Brand) J.M. Porter Aztec gilia
GIFO Gilia formosa Greene ex Brand NM (E)
PEOB2 Peperomia obtusifolia (L.) A. Dietr. baby rubberplant FL (E)
COBA8 Collema bachmanianum (Fink) Degel. Bachman's jelly lichen OH (E)
CABA3 Carex backii Boott Back's sedge CT (E), ME (E), MA (E), NJ (E), NY (T), PA (X)
PTBA Pteris bahamensis (J. Agardh) Fée Bahama brake FL (T)
SABA6 Savia bahamensis Britton Bahama maidenbush FL (E)
SOBAB Solanum bahamense L. var. bahamense Bahama nightshade
SODR2 Solanum drymophilum O.E. Schulz E PR (E)
SAPO3 Sachsia polycephala Griseb. Bahama sachsia
SABA9 Sachsia bahamensis Urb. FL (T)
PSLI2 Psychotria ligustrifolia (Northrop) Millsp. Bahama wild coffee FL (E)
CABA7 Carex baileyi Britton Bailey's sedge CT (SC), ME (SC), MA (E), NH (T)
ROMI80 Rosa minutifolia Engelm. Baja rose CA (E)
DEBA Delphinium bakeri Ewan Baker's delphinium E CA (R)
ARBA4 Arctostaphylos bakeri Eastw. Baker's manzanita CA (R)
LIBA2 Limnanthes bakeri J.T. Howell Baker's meadowfoam CA (R)
BLBA Blennosperma bakeri Heiser Baker's stickyseed E CA (E)
TADI2 Taxodium distichum (L.) Rich. bald cypress IN (T)
MABA3 Matelea baldwyniana (Sweet) Woodson Baldwin's milkvine FL (E)
XYBA Xyris baldwiniana Schult. Baldwin's yelloweyed grass AR (T)
MEBA2 Melicope balloui (Rock) T.G. Hartley & B.C. Stone Ballou's melicope E
ABBA Abies balsamea (L.) Mill. balsam fir CT (E)
PAPA20 Packera paupercula (Michx.) Á. Löve & D. Löve balsam groundsel
SEPA5 Senecio pauperculus Michx. CT (E), NH (T), OH (T)
POBA2 Populus balsamifera L. balsam poplar IL (E), IN (X), OH (E), PA (E)
SAPY Salix pyrifolia Andersson balsam willow NY (T)
CABA8 Carex baltzellii Chapm. ex Dewey Baltzell's sedge FL (T), GA (E)
SMPS Smilax pseudochina L. bamboo vine MD (T), NY (E), PA (X)
YUBA Yucca baccata Torr. banana yucca
YUBAB Yucca baccata Torr. var. baccata AZ (SR, HR), NV (CY)
YUBAV Yucca baccata Torr. var. vespertina McKelvey AZ (SR), NV (CY)
PRBA Prenanthes barbata (Torr. & A. Gray) Milstead barbed rattlesnakeroot KY (E), TN (SC)
SCAN5 Scirpus ancistrochaetus Schuyler barbedbristle bulrush E MD (E), MA (E), NH (E), PA (T), VT (E), VA (E)
CRBE2 Crataegus berberifolia Torr. & A. Gray barberry hawthorn NY (E)
TRTR8 Trichilia triacantha Urb. bariaco E PR (E)
LEBA Lepidium barnebyanum Reveal Barneby's pepperweed E
CABA9 Carex barrattii Schwein. & Torr. Barratt's sedge CT (E), NY (E), NC (E), PA (X), TN (E)
ASCUS2 Astragalus cusickii A. Gray var. sterilis (Barneby) Barneby barren milkvetch OR (T)
SYPR7 Symphyotrichum pratense (Raf.) G.L. Nesom barrens silky aster
ASPR3 Aster pratensis Raf. AR (T), KY (SC), TN (T)
PEBA7 Penstemon barrettiae A. Gray Barrett's beardtongue WA (T)
THVE2 Thelypteris verecunda Proctor Barrio Charcas maiden fern E PR (E)
SPBA2 Sphagnum bartlettianum Warnst. Bartlett's sphagnum OH (E)
CACO72 Calydorea coelestina (W. Bartram) Goldblatt & Henrich Bartram's ixia
SPCO5 Sphenostigma coelestinum (W. Bartram) R.C. Foster FL (E)
ERCO43 Eriogonum codium Reveal, Caplow & K. Beck basalt desert buckwheat WA (E)
ERBA4 Erigeron basalticus Hoover basalt fleabane WA (T)
TRPL6 Trichophorum planifolium (Spreng.) Palla bashful bulrush
SCVE Scirpus verecundus Fernald IL (E), KY (E), VT (E)
PYCL Pycnanthemum clinopodioides Torr. & A. Gray basil mountainmint CT (E), MA (E), NJ (E), NY (E)
QUSIS Quercus sinuata Walter var. sinuata bastard oak
QUDU2 Quercus durandii Buckley AR (T)
ARAL30 Arnoglossum album L.C. Anderson Bay County Indian plantain FL (E)
MYLA Myosotis laxa Lehm. bay forget-me-not IN (E)
SCGL7 Schisandra glabra (E.P. Bicknell) Rehder bay starvine GA (T), KY (E), NC (SC, T), TN (T)
SCCO3 Schisandra coccinea Michx. FL (E)
MABA6 Malaxis bayardii Fernald Bayard's adder's-mouth orchid MA (E), NJ (E), NY (E), PA (R)
SAMY2 Salix myricoides Muhl. bayberry willow ME (E)
JUMI2 Juncus militaris Bigelow bayonet rush IN (X), MD (E, X), MI (T), PA (E), VT (E)
JARE Jacquemontia reclinata House beach clustervine E FL (E)
AGFA2 Agalinis fasciculata (Elliot) Raf. beach false foxglove MD (E), NY (R)
LAJA Lathyrus japonicus Willd. beach pea OH (T), PA (T)
LAJAM Lathyrus japonicus Willd. var. maritimus (L.) Kartesz & Gandhi beach pea
LAJAG Lathyrus japonicus Willd. var. glaber (Ser.) Fernald IL (E)
LAMA3 Lathyrus maritimus Bigelow VT (T)
LAMAG2 Lathyrus maritimus Bigelow var. glaber (Ser.) Eames IN (E)
PRMA2 Prunus maritima Marshall beach plum ME (E), MD (E), PA (E)
CASI6 Carex silicea Olney beach sedge ME (SC), MD (E)
DIMA6 Dithyrea maritima (Davidson) Davidson beach shieldpod CA (T)
LACA4 Layia carnosa (Nutt.) Torr. & A. Gray beach tidytips E CA (E)
REMA3 Remirea maritima Aubl. beachstar FL (E)
AGRO3 Agrimonia rostellata Wallr. beaked agrimony NY (T)
VARA Valerianella radiata (L.) Dufr. beaked cornsalad NJ (E)
VARAF Valerianella radiata (L.) Dufr. var. fernaldii Dyal CT (SC)
CURO Cuscuta rostrata Shuttlw. ex Engelm. & A. Gray beaked dodder MD (E)
COCO6 Corylus cornuta Marshall beaked hazelnut OH (PRX)
COCOC2 Corylus cornuta Marshall var. cornuta beaked hazelnut
CORO5 Corylus rostrata Aiton IL (E)
CARO6 Carex rostrata Stokes beaked sedge TN (T), WA (S)
SHRO2 Shinnersoseris rostrata (A. Gray) S. Tomb beaked skeletonweed MN (T)
LYRO2 Lygodesmia rostrata (A. Gray) A. Gray IA (E)
ELRO2 Eleocharis rostellata (Torr.) Torr. beaked spikerush FL (E), IL (T), ME (PX), MN (T), PA (E), RI (SC), WA (S), WI (T)
QUIL Quercus ilicifolia Wangenh. bear oak VT (E)
ARUR Arenaria ursina B.L. Rob. Bear Valley sandwort T
SAUV Salix uva-ursi Pursh bearberry willow ME (T), NY (T), VT (E)
CYSQ Cyperus squarrosus L. bearded flatsedge RI (E)
CYAR3 Cyperus aristatus Rottb. ME (PX), NH (T)
GYAM Gymnopogon ambiguus (Michx.) Britton, Sterns & Poggenb. bearded skeletongrass IN (X), KY (SC), OH (PRX), PA (X)
LEFUF Leptochloa fusca (L.) Kunth ssp. fascicularis (Lam.) N. Snow bearded sprangletop MA (T)
DIMA10 Diplachne maritima E.P. Bicknell CT (E), NY (E)
LEFAM Leptochloa fascicularis (Lam.) A. Gray var. maritima (E.P. Bicknell) Gleason RI (H)
MIRU3 Minuartia rubella (Wahlenb.) Hiern. beautiful sandwort ME (T), VT (T)
STBE2 Sticta beauvoisii Delise Beauvois' spotted felt lichen OH (E)
OPBAB2 Opuntia basilaris Engelm. & Bigelow var. basilaris beavertail pricklypear AZ (SR), NV (CY)
OPBAL Opuntia basilaris Engelm. & Bigelow var. longiareolata (Clover & Jotter) L.D. Benson beavertail pricklypear AZ (SR)
SABE2 Salix bebbiana Sarg. Bebb willow MD (E, X)
CABE2 Carex bebbii Olney ex Fernald Bebb's sedge IN (T), NH (T), PA (E)
BIBE2 Bidens beckii Torr. ex Spreng. Beck's water-marigold IL (E), IN (E), NJ (E)
MEBE2 Megalodonta beckii (Torr. ex Spreng.) Greene CT (T), IA (E), OH (PRX), PA (E)
MEBEB Megalodonta beckii (Torr. ex Spreng.) Greene var. beckii NY (T)
ERAR14 Eryngium articulatum Hook. beethistle WA (PX)
HAVI2 Hackelia virginiana (L.) I.M. Johnst. beggarslice NH (T)
GEGE Geum geniculatum Michx. bent avens NC (T), TN (E)
CAST9 Carex styloflexa Buckley bent sedge NY (E), OH (PRX)
LALU Lactuca ludoviciana (Nutt.) Riddell biannual lettuce IN (X)
GEBI2 Geranium bicknellii Britton Bicknell's cranesbill CT (SC), IL (E), IN (E), OH (E), PA (E), RI (T)
CABI3 Carex bicknellii Britton Bicknell's sedge ME (PX), NY (T), OH (T), PA (E)
CAOP5 Carex opaca (F.J. Herm.) P. Rothr. & Reznicek Bicknell's sedge
CABIO Carex bicknellii Britton var. opaca F.J. Herm. AR (E)
AXFU Axonopus furcatus (Flueggé) Hitchc. big carpetgrass MD (E, X)
SPCY Spartina cynosuroides (L.) Roth big cordgrass MA (T), RI (SC)
EPST2 Epidendrum strobiliferum Rchb. f. big cypress star orchid FL (E)
NYAQ Nymphoides aquatica (J.F. Gmel.) Kuntze big floatingheart MD (E)
NEOV Neraudia ovata Gaudich. Big Island ma'oloa E
EPAM3 Epidendrum amphistomum A. Rich. big-mouth star orchid
EPAN7 Epidendrum anceps auct. non Jacq. FL (E)
ISMA Isoetes macrospora Durieu big-spore quillwort NH (T)
NOBI Nolina bigelovii (Torr.) S. Watson Bigelow's nolina AZ (SR, HR)
ALBI Allium bigelovii S. Watson Bigelow's onion AZ (SR)
CABI5 Carex bigelowii Torr. ex Schwein. Bigelow's sedge ME (SC), NY (T)
OEMAM Oenothera macrocarpa Nutt. ssp. macrocarpa bigfruit evening primrose TN (T)
JUME Juncus megacephalus M.A. Curtis bighead rush MD (E, X)
EUMA27 Eurybia macrophylla (L.) Cass. bigleaf aster
ASMA2 Aster macrophyllus L. IA (E), RI (SC)
VEDI Verbesina dissita A. Gray bigleaf crownbeard T CA (T)
MAMA2 Magnolia macrophylla Michx. bigleaf magnolia AR (E), OH (E)
STGR4 Styrax grandifolius Aiton bigleaf snowbell IL (E), IN (E), OH (PRX)
CUIN Cuscuta indecora Choisy bigseed alfalfa dodder NJ (E)
POGR4 Populus grandidentata Michx. bigtooth aspen TN (SC)
EVCO Evolvulus convolvuloides (Willd. ex Schult.) Stearn bindweed dwarf morning-glory FL (E)
PRLA Primula laurentiana Fernald birdeye primrose ME (SC)
SIPE4 Sidalcea pedata A. Gray birdfoot checkerbloom E CA (E)
VIPE Viola pedata L. birdfoot violet NY (EV), OH (T)
VIPEL Viola pedata L. var. lineariloba DC. NH (T)
CALA28 Campyloneurum latum T. Moore birdwing fern FL (E)
ESVIB Escobaria vivipara (Nutt.) Buxbaum var. bisbeeana (Orcutt) D.R. Hunt Bisbee spinystar
COVIB Coryphantha vivipara (Nutt.) Britton & Rose var. bisbeeana (Orcutt) L.D. Benson AZ (SR)
ZACO Zanthoxylum coriaceum A. Rich. Biscayne pricklyash FL (E)
ERACD2 Erigeron acris L. ssp. debilis (A. Gray) Piper bitter fleabane
TRAC3 Trimorpha acris auct. non (L.) Gray p.p. ME (PX)
PAAM2 Panicum amarum Elliot bitter panicgrass CT (T), RI (SC)
CACO15 Carya cordiformis (Wangenh.) K. Koch bitternut hickory ME (E)
ERCH6 Eriogonum chrysops Rydb. bitterroot buckwheat OR (T)
FRNI Fraxinus nigra Marshall black ash RI (SC)
ACRAR Actaea racemosa L. var. racemosa black bugbane
CIRA Cimicifuga racemosa (L.) Nutt. IL (E), MA (E)
EMNI Empetrum nigrum L. black crowberry MI (T), MN (E)
EMNIH Empetrum nigrum L. ssp. hermaphroditum (Lange ex Hagerup) Böcher black crowberry NY (R)
BUNI2 Buellia nigra (Fink) Sheard black disc lichen MN (E)
CANI3 Carex nigromarginata Schwein. black edge sedge CT (SC), IL (E), NY (E)
CRDO2 Crataegus douglasii Lindl. black hawthorn MN (T)
CATE9 Carya texana Buckley black hickory IN (E)
GABA Gaylussacia baccata (Wangenh.) K. Koch black huckleberry IA (T)
ACNI5 Acer nigrum Michx. f. black maple CT (SC), MA (SC), NH (T)
PIMA Picea mariana (Mill.) Britton, Sterns & Poggenb. black spruce RI (SC)
ERNI7 Eriocaulon nigrobracteatum Bridges & Orzell blackbract pipewort FL (E)
RUHIH Rudbeckia hirta L. var. hirta blackeyed Susan NY (E)
ISME Isoetes melanopoda Gay & Durieu ex Durieu blackfoot quillwort IN (E), IA (E), KY (E), MN (E), NJ (E), TN (E)
ELME Eleocharis melanocarpa Torr. blackfruit spikerush IN (T), MD (E), NJ (E), RI (E)
VIPR Viburnum prunifolium L. blackhaw CT (SC)
PARA2 Patis racemosa (Sm.) Romasch., P.M. Peterson & R. J. Soreng blackseed ricegrass
ORRA2 Oryzopsis racemosa (Sm.) Ricker ex Hitchc. IN (T), MD (T), OH (T)
PIRA5 Piptatherum racemosum (Sm.) Barkworth blackseed ricegrass
PIAV Piptochaetium avenaceum (L.) Parodi blackseed speargrass OH (PRX), PA (X)
STAV Stipa avenacea L. IN (T)
GYHE3 Gymnocarpium ×heterosporum W.H. Wagner (pro sp.) [appalachianum × robertianum] blackspore oakfern
GYHE Gymnocarpium heterosporum W.H. Wagner PA (X)
ISME3 Isoetes melanospora Engelm. blackspore quillwort E GA (E)
ASRE Asplenium resiliens Kunze blackstem spleenwort IL (E), IN (E), MD (E), OH (PRX), PA (E)
ERFR4 Erithalis fruticosa L. blacktorch FL (T)
SCSPB Sclerocactus spinosior (Engelm.) Woodruff & L.D. Benson ssp. blainei (S.L. Welsh & Thorne) F. Hochstätter Blaine fishhook cactus
SCBL Sclerocactus blainei S.L. Welsh & Thorne NV (CY)
SCSC5 Sclerocactus schlesseri K.D. Heil & S.L. Welsh NV (CY)
AGBL Agrostis blasdalei Hitchc. Blasdale bentgrass
AGBLM Agrostis blasdalei Hitchc. var. marinensis Crampton CA (R)
CAVE6 Carex vesicaria L. blister sedge MD (T)
CHCA4 Chenopodium capitatum (L.) Asch. blite goosefoot OH (PRX)
ARBL2 Argythamnia blodgettii (Torr.) Chapm. Blodgett's silverbush FL (E)
CYBL Cynanchum blodgettii (A. Gray) Shinners Blodgett's swallow-wort FL (T)
SACA13 Sanguinaria canadensis L. bloodroot NY (EV), RI (SC)
TRRE5 Trillium recurvatum Beck bloody butcher MI (T)
PEHA12 Penstemon haydenii S. Watson blowout beardtongue E NE (E)
FRQU Fraxinus quadrangulata Michx. blue ash IA (T), WI (T)
CATH2 Caulophyllum thalictroides (L.) Michx. blue cohosh RI (T)
CYMU11 Cylindropuntia ×multigeniculata (Clokey) Backeb. (pro sp.) [echinocarpa × whipplei] Blue Diamond cholla
OPWHM Opuntia whipplei Engelm. & Bigelow var. multigeniculata (Clokey) L.D. Benson AZ (SR), NV (CY, FP)
AGFO Agastache foeniculum (Pursh) Kuntze blue giant hyssop IA (E)
BOGR2 Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths blue grama IL (E)
LATAP Lactuca tatarica (L.) C.A. Mey. var. pulchella (Pursh) Breitung blue lettuce
LAPU Lactuca pulchella (Pursh) DC. MI (T)
AMPU6 Amphicarpum purshii Kunth blue maidencane NY (E)
AMAM Amphicarpum amphicarpon (Pursh) Nash MA (E)
ALDI3 Allium dictuon H. St. John Blue Mountain onion WA (T)
PHCA10 Phyllodoce caerulea (L.) Bab. blue mountainheath ME (T), NH (T)
HELI2 Heteranthera limosa (Sw.) Willd. blue mudplantain KY (SC), MN (T), TN (T)
PAFL6 Parkinsonia florida (Benth. ex A. Gray) S. Watson blue paloverde
CEFL6 Cercidium floridum Benth. ex A. Gray AZ (SA)
CAFL13 Cardamine flagellifera O.E. Schulz Blue Ridge bittercress TN (T)
SMLA3 Smilax lasioneura Hook. Blue Ridge carrionflower
SMHEL2 Smilax herbacea L. var. lasioneura (Hook.) A. DC. OH (T)
SIOV Silene ovata Pursh Blue Ridge catchfly AR (T), IL (E), IN (E), KY (T), TN (E)
SOSP6 Solidago spithamaea M.A. Curtis Blue Ridge goldenrod T NC (E), TN (E)
CALU17 Carex lucorum Willd. ex Link Blue Ridge sedge IL (E), OH (E)
SCAR4 Scutellaria arguta Buckley Blue Ridge skullcap KY (T), TN (E)
HYMI Hypericum mitchellianum Rydb. Blue Ridge St. Johnswort TN (T)
CAGL6 Carex glaucodea Tuck. ex Olney blue sedge MA (E)
CAFLG5 Carex flaccosperma Dewey var. glaucodea (Tuck. ex Olney) Kük. NH (E), NY (E)
CUVI Cuphea viscosissima Jacq. blue waxweed CT (SC)
BAAU Baptisia australis (L.) R. Br. blue wild indigo IN (T), MD (T), OH (E)
BAAUM Baptisia australis (L.) R. Br. var. minor (Lehm.) Fernald blue wild indigo KY (SC)
BAMI4 Baptisia minor Lehm. NC (T)
CLBO3 Clintonia borealis (Aiton) Raf. bluebead IN (E), MD (T), OH (E), TN (SC)
CARO2 Campanula rotundifolia L. bluebell bellflower NY (EV), OH (E)
CLPI Clematis pitcheri Torr. & A. Gray bluebill IN (R)
PSSPS Pseudoroegneria spicata (Pursh) Á. Löve ssp. spicata bluebunch wheatgrass
AGSP Agropyron spicatum Pursh MI (PREX)
DICAP Dichelostemma capitatum (Benth.) Alph. Wood ssp. pauciflorum (Torr.) G. Keator bluedicks
DIPUP Dichelostemma pulchellum (Salisb.) A. Heller var. pauciflorum (Torr.) Hoover AZ (SR)
PICA7 Pinguicula caerulea Walter blueflower butterwort FL (T)
ERIN6 Eryngium integrifolium Walter blueflower eryngo KY (E)
TROH Tradescantia ohiensis Raf. bluejacket PA (E)
ACMU2 Achyranthes mutica A. Gray blunt chaff flower E
ELOB2 Eleocharis obtusa (Willd.) Schult. blunt spikerush
ELOBP Eleocharis obtusa (Willd.) Schult. var. peasei Svens. PA (E)
GAOB Galium obtusum Bigelow bluntleaf bedstraw ME (PX)
GAOBO Galium obtusum Bigelow ssp. obtusum bluntleaf bedstraw NH (E)
POOB2 Potamogeton obtusifolius Mert. & W.D.J. Koch bluntleaf pondweed NJ (E), PA (E), WA (S)
MOLA6 Moehringia lateriflora (L.) Fenzl bluntleaf sandwort MD (E)
HYCA3 Hydrophyllum canadense L. bluntleaf waterleaf MA (E), NJ (E), VT (T)
PLOB Platanthera obtusata (Banks ex Pursh) Lindl. bluntleaved orchid NY (EV), WA (S)
WOOB2 Woodsia obtusa (Spreng.) Torr. bluntlobe cliff fern ME (T), MI (T), NH (T), NY (EV)
BOON Botrychium oneidense (Gilbert) House bluntlobe grapefern KY (E), MD (E), MN (E), NY (E), TN (SC)
OSDE Osmorhiza depauperata Phil. bluntseed sweetroot MI (T)
BOSU2 Bourreria succulenta Jacq. bodywood FL (E)
MAPA4 Malaxis paludosa (L.) Sw. bog adder's-mouth orchid MN (E)
PUPA Puccinellia parishii Hitchc. bog alkaligrass AZ (HS), NM (E)
OCNE2 Oclemena nemoralis (Aiton) Greene bog aster
ASNE Aster nemoralis Aiton CT (E), PA (E)
BEPU4 Betula pumila L. bog birch CT (SC), IA (T), ME (SC), MA (E), NH (E), NY (T), OH (T)
BEPUG Betula pumila L. var. glandulifera Regel bog birch VT (E)
VAUL Vaccinium uliginosum L. bog blueberry MI (T), MN (T), NY (R)
POPA Poa paludigena Fernald & Wiegand bog bluegrass IN (WL), MI (T), MN (T), NY (E), NC (E), OH (T), PA (T), WI (T)
STAL4 Stellaria alsine Grimm bog chickweed MD (E), TN (E)
THSI2 Thelypteris simulata (Davenport) Nieuwl. bog fern MD (T), NY (EV), NC (T), TN (PX, E)
SOUL Solidago uliginosa Nutt. bog goldenrod IA (E), TN (SC)
SOULL2 Solidago uliginosa Nutt. var. linoides (Torr. & A. Gray) Fernald bog goldenrod
SOPU8 Solidago purshii Porter NH (T)
LEGR Ledum groenlandicum Oeder bog Labrador tea CT (T), OH (E), PA (R)
KAPO Kalmia polifolia Wangenh. bog laurel NJ (E), NY (EV), RI (T)
MUUN Muhlenbergia uniflora (Muhl.) Fernald bog muhly PA (E)
ANPO Andromeda polifolia L. bog rosemary PA (R)
ANPOG Andromeda polifolia L. var. glaucophylla (Link) DC. bog rosemary
ANGL Andromeda glaucophylla Link CT (T), IN (R), NJ (E), OH (PRX), RI (E)
JUBI Juncus biflorus Elliot bog rush PA (T)
JUMAB Juncus marginatus Rostk. var. biflorus (Elliot) Alph. Wood NY (E)
POSE6 Polygonum setaceum Baldw. bog smartweed
PESE15 Persicaria setacea (Baldw.) Small MA (T)
POHYS2 Polygonum hydropiperoides Michx. var. setaceum (Baldw.) Gleason IN (E), RI (H)
POSEI Polygonum setaceum Baldw. var. interjectum Fernald NY (E), OH (E), PA (E)
LISU8 Lindera subcoriacea B.E. Wofford bog spicebush FL (E), NC (E)
MIST5 Minuartia stricta (Sw.) Hiern. bog stitchwort NH (E)
VILA4 Viola lanceolata L. bog white violet MN (T), VT (T)
SAPE2 Salix pedicellaris Pursh bog willow CT (E), IA (T), NJ (E), OH (E), PA (E), RI (H)
EPLE2 Epilobium leptophyllum Raf. bog willowherb TN (T)
XYDI Xyris difformis Chapm. bog yelloweyed grass IN (T), KY (E), OH (E)
GRHE Gratiola heterosepala H. Mason & Bacig. Boggs Lake hedgehyssop CA (E), OR (T)
LEBO9 Leptosiphon bolanderi (A. Gray) J.M. Porter & L.A. Johnson Bolander's linanthus
LIBO2 Linanthus bolanderi (A. Gray) Greene WA (S)
ISBO2 Isoetes boomii N. Luebke Boom's quillwort FL (E)
GAKA Galium kamtschaticum Steller ex Schult. & Schult. f. boreal bedstraw ME (SC), MI (T), NY (E), WA (S)
CAMAI2 Carex magellanica Lam. ssp. irrigua (Wahlenb.) Hultén boreal bog sedge WA (S)
CAPA22 Carex paupercula Michx. CT (E), PA (R)
STBO3 Stellaria borealis Bigelow boreal starwort CT (SC), NJ (E)
ACMIB Achillea millefolium L. var. borealis (Bong.) Farw. boreal yarrow ME (SC)
GAANB Galium angustifolium Nutt. ex A. Gray ssp. borregoense Dempster & Stebbins Borrego bedstraw CA (R)
GECL Gentiana clausa Raf. bottle gentian NY (EV)
CAHY4 Carex hystericina Muhl. ex Willd. bottlebrush sedge KY (H), MD (E), WA (S)
SYON2 Symphyotrichum ontarionis (Wiegand) G.L. Nesom bottomland aster
ASON Aster ontarionis Wiegand OH (E)
HEMU5 Heteranthera multiflora (Griseb.) Horn bouquet mudplantain PA (E)
GITR6 Gillenia trifoliata (L.) Moench Bowman's root MI (T)
GABU Galium buxifolium Greene box bedstraw E CA (R)
GABR5 Gaylussacia brachycera (Michx.) A. Gray box huckleberry MD (E), PA (E)
POBU2 Polygonum buxiforme Small box knotweed NY (E)
ECBO3 Echinocereus boyce-thompsonii Orcutt Boyce Thompson hedgehog cactus
ECFAB2 Echinocereus fasciculatus (Engelm. ex B.D. Jacks.) L.D. Benson var. boyce-thompsonii (Orcutt) L.D. Benson AZ (SR)
ECFEB2 Echinocereus fendleri (Engelm.) Sencke ex J.N. Haage var. boyce-thompsonii (Orcutt) L.D. Benson AZ (SR)
DIMU Dioclea multiflora (Torr. & A. Gray) C. Mohr Boykin's clusterpea
GAMO4 Galactia mohlenbrockii R.H. Maxwell IL (E)
LOBO Lobelia boykinii Torr. & A. Gray ex A. DC. Boykin's lobelia FL (E), NJ (E)
POBO4 Polygala boykinii Nutt. Boykin's milkwort TN (SC)
BRTR4 Brachydontium trichodes (F. Weber) Milde brachydontium moss TN (E)
BRPO4 Brachythecium populeum (Hedw.) Schimp. brachythecium moss KY (E)
HIBR Hibiscus brackenridgei A. Gray Brackenridge's rosemallow E
VIBR2 Viburnum bracteatum Rehder bracted arrowwood GA (E), TN (E)
ALBR6 Aletris bracteata Northrop bracted colicroot FL (E)
ASBR2 Asplenium bradleyi D.C. Eaton Bradley's spleenwort IL (E), IN (E), MD (E, X), NJ (E), NY (E), OH (T), PA (E)
LOBR Lomatium bradshawii (Rose ex Mathias) Mathias & Constance Bradshaw's desertparsley E OR (E), WA (E)
PEBR2 Pediocactus bradyi L.D. Benson Brady's pincushion cactus E AZ (HS)
CRBR3 Crataegus brainerdii Sarg. Brainerd's hawthorn OH (PRX)
SPAN Sparganium androcladum (Engelm.) Morong branched bur-reed IN (T), PA (E), TN (E)
DRRA Draba ramosissima Desv. branched draba TN (SC)
DIBR2 Dicliptera brachiata (Pursh) Spreng. branched foldwing IN (E)
GRRA Gratiola ramosa Walter branched hedgehyssop MD (E, X)
CYRA9 Cylindropuntia ramosissima (Engelm.) F.M. Knuth branched pencil cholla
OPRA Opuntia ramosissima Engelm. AZ (SR), NV (CY)
POME4 Polygonum meisnerianum Cham. & Schltdl. branched tearthumb FL (E)
PHGI Phacelia gilioides Brand Brand's phacelia IL (E)
ERBR3 Eriastrum brandegeeae H. Mason Brandegee's woollystar
ERTR4 Eriastrum tracyi H. Mason CA (R)
POBR4 Polystichum braunii (Spenner) Fée Braun's hollyfern MA (E), MN (E), NY (EV), PA (E), WI (T)
ASBR6 Astragalus brauntonii Parish Braunton's milkvetch E
WOBR Wolffia brasiliensis Weddell Brazilian watermeal
WOPA Wolffia papulifera C.H. Thomp. MI (T)
PEBR4 Pellaea breweri D.C. Eaton Brewer's cliffbrake WA (S)
ELOL Eleocharis olivacea Torr. bright green spikerush IL (E), KY (SC), MN (T), OH (T), PA (R)
ASTR10 Asplenium trichomanes-ramosum L. brightgreen spleenwort ME (T), MI (T), NY (E), VT (T)
ASVI10 Asplenium viride Huds. WI (E)
CRRO3 Cryptantha roosiorum Munz bristlecone cryptantha CA (R)
PIAR Pinus aristata Engelm. bristlecone pine AZ (SR)
COMA3 Collomia macrocalyx Leiberg ex Brand bristleflower collomia WA (S)
CAEB2 Carex eburnea Boott bristleleaf sedge IN (R), ME (E), MD (E), NH (E), PA (E)
RAHIH Ranunculus hispidus Michx. var. hispidus bristly buttercup RI (SC)
RAHIN Ranunculus hispidus Michx. var. nitidus (Chapm.) T. Duncan bristly buttercup MD (E, X), NY (E)
CYHY Cyperus hystricinus Fernald bristly flatsedge NJ (E)
SMTA2 Smilax tamnoides L. bristly greenbrier
SMHI Smilax hispida Muhl. ex Torr. CT (SC)
ARHI2 Aralia hispida Vent. bristly sarsaparilla IN (E), MD (E), OH (E)
SIHI3 Sidalcea hirtipes C.L. Hitchc. bristlystem checkerbloom WA (E)
CYFR2 Cystopteris fragilis (L.) Bernh. brittle bladderfern NY (EV), OH (PRX)
OPFR Opuntia fragilis (Nutt.) Haw. brittle pricklypear IL (E), IA (T), MI (E), NV (CY), WI (T)
OPFRB Opuntia fragilis (Nutt.) Haw. var. brachyarthra (Engelm. & Bigelow) J.M. Coult. AZ (SR)
OPFRF Opuntia fragilis (Nutt.) Haw. var. fragilis AZ (SR)
MINUF Minuartia nuttallii (Pax) Briq. ssp. fragilis (Maguire & A.H. Holmgren) McNeill brittle sandwort WA (S)
NOBR Nolina brittoniana Nash Britton's beargrass E FL (E)
PHSUB2 Phlox subulata L. ssp. brittonii (Small) Wherry Britton's phlox PA (E)
POBR9 Ponthieva brittoniae Ames Britton's shadow witch FL (E)
ELBR Eleocharis brittonii Svens. ex Small Britton's spikerush NJ (E)
PHHE11 Phegopteris hexagonoptera (Michx.) Fée broad beechfern ME (SC), MN (T), NY (EV)
TEHE Tectaria heracleifolia (Willd.) Underw. broad halberd fern FL (T)
CALAS Carex laxiflora Lam. var. serrulata F.J. Herm. broad looseflower sedge NY (E)
SPEU Sparganium eurycarpum Engelm. broadfruit bur-reed KY (E), NH (T)
CANI Calochortus nitidus Douglas broadfruit mariposa lily WA (T)
SALA2 Sagittaria latifolia Willd. broadleaf arrowhead
SALO11 Sagittaria longirostra (Micheli) J.G. Sm. IL (E)
MATR2 Marshallia trinervia (Walter) Trel. broadleaf Barbara's buttons TN (T)
VEGL Vernonia glauca (L.) Willd. broadleaf ironweed NJ (E), PA (E)
TRAM18 Triphora amazonica Schltr. broadleaf noddingcaps
TRLA17 Triphora latifolia Luer f. FL (E)
CAPL5 Carex platyphylla Carey broadleaf sedge MI (T)
COLA7 Coreopsis latifolia Michx. broadleaf tickseed TN (E)
LICO5 Listera convallarioides (Sw.) Nutt. ex Elliot broadlipped twayblade AZ (SR), NH (T), NY (E), WI (T)
CAAL3 Carex alata Torr. broadwing sedge CT (E), IL (E), KY (T), PA (T), RI (SC)
CABRM2 Carex bromoides Schkuhr ex Willd. ssp. montana Naczi brome-like sedge
CABRM Carex bromoides Schkuhr ex Willd. var. montana Naczi TN (T)
PORI3 Potentilla rivalis Nutt. brook cinquefoil
POMI6 Potentilla millegrana Engelm. ex Lehm. IL (E)
COCO9 Corema conradii (Torr.) Torr. ex Loudon broom crowberry MA (SC), NJ (E), NY (E)
BADI3 Baccharis dioica Vahl broombush false willow FL (E)
RHFU Rhynchospora fusca (L.) W.T. Aiton brown beaksedge PA (X)
LILI3 Liparis liliifolia (L.) Rich. ex Ker Gawl. brown widelip orchid CT (E), MA (T), NY (E), RI (E), VT (T)
AMBR5 Amaranthus brownii Christoph. & Caum Brown's amaranth E
DABR2 Dalbergia brownei (Jacq.) Schinz Brown's Indian rosewood FL (E)
RUTR2 Rudbeckia triloba L. browneyed Susan FL (E)
JUPE Juncus pelocarpus E. Mey. brownfruit rush IN (T), MD (E)
CTSU2 Ctenitis submarginalis (Langsd. & Fisch.) Ching brownhair lacefern FL (E)
CABR15 Carex brunnescens (Pers.) Poir. brownish sedge IL (E), IN (E), NJ (E), OH (T)
BRVI6 Bryocrumia vivicolor (Dix.) W.R. Buck bryocrumia moss
BRAN8 Bryocrumia andersonii (E.B. Bartram) L.E. Anderson NC (E)
BRCY70 Bryum cyclophyllum (Schwägr.) Bruch & Schimp. bryum moss KY (E)
METR3 Menyanthes trifoliata L. buckbean IA (T), MD (E), NC (T), OH (T)
CYACA2 Cylindropuntia acanthocarpa (Engelm. & Bigelow) F.M. Knuth var. acanthocarpa buckhorn cholla
OPACA Opuntia acanthocarpa Engelm. & Bigelow var. acanthocarpa AZ (SR)
CYACM Cylindropuntia acanthocarpa (Engelm. & Bigelow) F.M. Knuth var. major (Engelm. & Bigelow) Pinkava buckhorn cholla
OPACM Opuntia acanthocarpa Engelm. & Bigelow var. major (Engelm. & Bigelow) L.D. Benson AZ (SR)
SOBU Solidago buckleyi Torr. & A. Gray Buckley's goldenrod IN (E), KY (SC)
SILY Sideroxylon lycioides L. buckthorn bully FL (E)
BULY Bumelia lycioides (L.) Pers. IN (E)
TRRE2 Trifolium reflexum L. buffalo clover IL (E), KY (E), MD (E, X), OH (E), PA (X), TN (E)
TRREG Trifolium reflexum L. var. glabrum Loja. IN (E)
PYPU Pyrularia pubera Michx. buffalo nut PA (R)
ALGET Allium geyeri S. Watson var. tenerum M.E. Jones bulbil onion AZ (SR)
CYBU3 Cystopteris bulbifera (L.) Bernh. bulblet bladderfern NY (EV)
CIBU Cicuta bulbifera L. bulblet-bearing water hemlock MD (E), WA (S)
OPCR Ophioglossum crotalophoroides Walter bulbous adderstongue TN (SC)
CABU3 Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. bulbous bittercress NH (E)
LUBU Luzula bulbosa (Alph. Wood) Smyth & Smyth bulbous woodrush OH (T), PA (E)
PABO3 Paspalum boscianum Flueggé bull crowngrass KY (SC)
BEBU Besseya bullii (Eaton) Rydb. Bull's coraldrops IL (T), IN (E), IA (T), MI (T), MN (T), OH (PRX), WI (T)
COTU Coelorachis tuberculosa (Nash) Nash bumpy jointtail grass FL (T)
COCA13 Cornus canadensis L. bunchberry dogwood IL (E), IN (E), IA (T), MD (E), OH (T)
SAFA5 Sagittaria fasciculata E.O. Beal bunched arrowhead E NC (E)
RHCE Rhynchospora cephalantha A. Gray bunched beaksedge MD (E)
QUMA2 Quercus macrocarpa Michx. bur oak CT (E), MA (SC)
CASP3 Carex sparganioides Muhl. ex Willd. bur-reed sedge ME (E), NH (E), RI (H)
LEBU2 Lepidospartum burgessii B.L. Turner Burgess' broomsage NM (E)
LABU Lasthenia burkei (Greene) Greene Burke's baeria E CA (E)
EUAT5 Euonymus atropurpureus Jacq. burningbush FL (E)
OKHY Okenia hypogaea Schltdl. & Cham. burrowing four o'clock FL (E)
EUAM9 Euonymus americanus L. bursting-heart
EUAM7 Euonymus americana L., orth. var. IL (E), NY (E)
ECPA2 Echinacea paradoxa (J.B.S. Norton) Britton Bush's purple coneflower AR (T)
CABU5 Carex bushii Mack. Bush's sedge CT (SC), IN (E), ME (PX), MA (E), NJ (E), OH (E)
SCBU Scutellaria bushii Britton Bush's skullcap AR (T)
ANGLG2 Andropogon glomeratus (Walter) Britton, Sterns & Poggenb. var. glomeratus bushy bluestem
ANVIA Andropogon virginicus L. var. abbreviatus (Hack.) Fernald & Grisc. OH (E)
HEDU Helianthemum dumosum (E.P. Bicknell) Fernald bushy frostweed CT (SC), MA (SC), NY (T), RI (E)
PORA3 Polygonum ramosissimum Michx. bushy knotweed MD (E, X), PA (X)
PORAP Polygonum ramosissimum Michx. var. prolificum Small bushy knotweed
POPR10 Polygonum prolificum (Small) B.L. Rob. NH (T)
PORAR Polygonum ramosissimum Michx. var. ramosissimum bushy knotweed
POEX4 Polygonum exsertum auct. non Small. p.p. NH (T)
BOFR Borrichia frutescens (L.) DC. bushy seaside tansy MD (E, X)
HYDE Hypericum densiflorum Pursh bushy St. Johnswort NY (E), PA (T)
ASTU Asclepias tuberosa L. butterfly milkweed ME (PX), NH (E), NY (EV), RI (SC), VT (T)
JUCI Juglans cinerea L. butternut KY (SC), NY (EV), TN (T)
ERBU2 Eriogonum butterworthianum J.T. Howell Butterworth's buckwheat CA (R)
ERYU Eryngium yuccifolium Michx. button eryngo MD (E, X), MI (T), OH (T)
CABU7 Carex bullata Schkuhr ex Willd. button sedge NH (E), NY (E), PA (E)
CUCE Cuscuta cephalanthi Engelm. buttonbush dodder NJ (E), NY (E)
CABU6 Carex buxbaumii Wahlenb. Buxbaum's sedge CT (E), KY (H), MD (T), NH (E), NY (T), PA (R), RI (SC), TN (SC), VT (E), WA (S)
BUMI6 Buxbaumia minakatae Okam. buxbaumia moss OH (E)
BRIN4 Brighamia insignis A. Gray cabbage on a stick E
OPENE Opuntia engelmannii Salm-Dyck ex Engelm. var. engelmannii cactus apple AZ (SR)
OPENF Opuntia engelmannii Salm-Dyck ex Engelm. var. flavispina (L.D. Benson) Parfitt & Pinkava cactus apple AZ (SR)
CACA2 Calamagrostis cainii Hitchc. Cain's reedgrass NC (E), TN (E)
IPMI Ipomoea microdactyla Griseb. calcareous morning-glory FL (E)
SYLAL7 Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve var. lateriflorum calico aster
ASLAH3 Aster lateriflorus (L.) Britton var. hirsuticaulis (Lindl. ex DC.) Porter NY (E)
FECYC Ferocactus cylindraceus (Engelm.) Orcutt var. cylindraceus California barrel cactus AZ (SR)
FEEA2 Ferocactus eastwoodiae (L.D. Benson) L.D. Benson California barrel cactus
FECYE Ferocactus cylindraceus (Engelm.) Orcutt var. eastwoodiae (L.D. Benson) N.P. Taylor AZ (SR)
ARCA4 Arctomecon californica Torr. & Frém. California bearpoppy AZ (SR), NV (FP)
DACA12 Damasonium californicum Torr. ex Benth. California damsonium WA (S)
TACA5 Taraxacum californicum Munz & I.M. Johnst. California dandelion E
VECA2 Veratrum californicum Durand California false hellebore AZ (SR)
WAFI Washingtonia filifera (Linden ex André) H. Wendl. California fan palm AZ (SR)
FRCA6 Fremontodendron californicum (Torr.) Coville California flannelbush AZ (SR)
JUCA7 Juniperus californica Carrière California juniper NV (CY)
LIFLC2 Limnanthes floccosa Howell ssp. californica Arroyo California meadowfoam E CA (E)
GULA4 Guillenia lasiophylla (Hook. & Arn.) Greene California mustard
CAST14 Caulanthus stenocarpus Payson CA (E)
ORCA Orcuttia californica Vasey California Orcutt grass E CA (E)
PICA9 Pityopus californica (Eastw.) Copeland f. California pinefoot WA (S)
ABMA Abies magnifica A. Murray bis California red fir NV (CY)
SUCA Suaeda californica S. Watson California seablite E
POCA25 Polystichum californicum (D.C. Eaton) Diels California swordfern WA (S)
PLST2 Plagiobothrys strictus (Greene) I.M. Johnst. Calistoga popcornflower E CA (T)
CHPUR Chlorogalum purpureum Brandegee var. reductum Hoover Camatta Canyon amole CA (R)
PLCA7 Pluchea camphorata (L.) DC. camphor pluchea MD (E), OH (E)
HESU3 Heterotheca subaxillaris (Lam.) Britton & Rusby camphorweed
HESUL Heterotheca subaxillaris (Lam.) Britton & Rusby var. latifolia (Buckley) Gandhi & R.D. Thomas KY (T)
CASA30 Campylostelium saxicola (F. Weber & D. Mohr) Bruch & Schimp. campylostelium moss OH (E)
MIPO2 Mitracarpus polycladus Urb. cana gorda girdlepod E PR (E)
TECAC Teucrium canadense L. var. canadense Canada germander
TECAV Teucrium canadense L. var. virginicum (L.) Eaton NH (E)
SOAL6 Solidago altissima L. Canada goldenrod ME (PX)
LICA3 Lilium canadense L. Canada lily IN (R), NY (EV), RI (T), TN (T)
MACA4 Maianthemum canadense Desf. Canada mayflower KY (T)
MACAI Maianthemum canadense Desf. var. interius Fernald NJ (E)
ELGE Eleocharis geniculata (L.) Roem. & Schult. Canada spikesedge IN (T)
ELCA2 Eleocharis caribaea (Rottb.) S.F. Blake MI (T), OH (E), PA (E)
NUCA Nuttallanthus canadensis (L.) D.A. Sutton Canada toadflax
LICA6 Linaria canadensis (L.) Chaz. OH (E)
TACA7 Taxus canadensis Marshall Canada yew IN (T), KY (T), MD (T), RI (SC), TN (E)
ANCA8 Anemone canadensis L. Canadian anemone CT (E), KY (H), MD (E, X), TN (E)
SACA15 Sanicula canadensis L. Canadian blacksnakeroot MA (T), VT (T)
SACA14 Sanguisorba canadensis L. Canadian burnet GA (T), IL (E), IN (E), KY (E), ME (T), MD (T), MI (T), RI (E), TN (E)
RIOX Ribes oxyacanthoides L. Canadian gooseberry WI (T)
HICA3 Hieracium canadense Michx. Canadian hawkweed OH (T)
CRCA9 Cryptotaenia canadensis (L.) DC. Canadian honewort FL (E), ME (PX), RI (SC)
COCAP3 Conyza canadensis (L.) Cronquist var. pusilla (Nutt.) Cronquist Canadian horseweed IN (X)
LICA16 Ligusticum canadense (L.) Britton Canadian licorice-root IN (E), MD (E, X), OH (PRX), PA (E)
ASCA11 Astragalus canadensis L. Canadian milkvetch MD (E), MI (T), VT (T)
PRNI Prunus nigra Aiton Canadian plum IA (E), OH (PRX)
ANHOC Antennaria howellii Greene ssp. canadensis (Greene) Bayer Canadian pussytoes
ANCA38 Antennaria canadensis Greene NJ (E)
PICA19 Piptatheropsis canadensis (Poir.) Romasch., P.M. Peterson & R.J. Soreng Canadian ricegrass
ORCA5 Oryzopsis canadensis (Poir.) Torr. ME (SC), MI (T), NH (E), NY (E)
PICA17 Piptatherum canadense (Poir.) Dorn Canadian ricegrass
SPCA3 Spergularia canadensis (Pers.) G. Don Canadian sandspurry CT (T), RI (SC)
VICA4 Viola canadensis L. Canadian white violet CT (T), IL (E), ME (E), NJ (E), RI (H)
ASCA Asarum canadense L. Canadian wildginger ME (T)
SCET2 Schoenoplectus etuberculatus (Steud.) Soják Canby's bulrush
SCET3 Scirpus etuberculatus (Steud.) Kunze MD (E), RI (E)
OXCA2 Oxypolis canbyi (J.M. Coult. & Rose) Fernald Canby's cowbane E GA (E), MD (E), NC (E)
LOCA Lobelia canbyi A. Gray Canby's lobelia MD (E), TN (T)
PACA Paxistima canbyi A. Gray Canby's mountain-lover KY (T), MD (E), OH (E), PA (E), TN (E)
MIPU2 Mimulus pulsiferae A. Gray candelabrum monkeyflower WA (S)
ANCY Anemone cylindrica A. Gray candle anemone NJ (E), OH (T), PA (E), RI (SC)
FEWI Ferocactus wislizeni (Engelm.) Britton & Rose candy barrelcactus AZ (SR)
PONA2 Polygala nana (Michx.) DC. candyroot TN (E)
PRSE Prenanthes serpentaria Pursh cankerweed RI (SC)
NASE3 Nabalus serpentarius (Pursh) Hook. MA (E)
SCSPL Schiedea spergulina A. Gray var. leiopoda Sherff canyon schiedea E
SCSPS Schiedea spergulina A. Gray var. spergulina canyon schiedea T
CAAM14 Callicarpa ampla Schauer caparosa E PR (E)
PHLA21 Pharus lappulaceus Aubl. Cape Francais stalkgrass
PHGL8 Pharus glaber Kunth FL (E)
TRMA19 Trichocentrum maculatum (Aubl.) M.W. Chase Cape Sable orchid
ONLU Oncidium luridum auct. non Lindl. FL (E)
CHFR4 Chromolaena frustrata (B.L. Rob.) King & H. Rob. Cape Sable thoroughwort
EUFR2 Eupatorium frustratum B.L. Rob. FL (E)
AGLI3 Ageratum littorale A. Gray Cape Sable whiteweed FL (E)
BUCIC Bulbostylis ciliatifolia (Elliot) Fernald var. coarctata (Elliot) Kral capillary hairsedge TN (PX, E)
CACAA2 Carex capitata L. ssp. arctogena (Harry Sm.) Hiitonen capitate sedge NH (T)
LOCA2 Lobelia cardinalis L. cardinalflower FL (T), NY (EV)
LOCAG2 Lobelia cardinalis L. ssp. graminea (Lam.) McVaugh AZ (SR)
CACA14 Carex careyana Torr. ex Dewey Carey's sedge MD (E), MN (T), PA (E), WI (T)
POCA8 Polygonum careyi Olney Carey's smartweed IL (E), IN (T), MI (T), NY (T), OH (PRX), PA (E)
HAFR3 Harrisia fragrans Small ex Britton & Rose Caribbean applecactus
CEERF Cereus eriophorus N.E. Pfeiffer & Otto var. fragrans (Small ex Britton & Rose) L.D. Benson E
DIDO Digitaria dolichophylla Henr. Caribbean crabgrass FL (T)
EXCA Exostema caribaeum (Jacq.) Schult. Caribbean princewood FL (E)
CYHAC Cyanea hamatiflora Rock ssp. carlsonii (Rock) Lammers Carlson's cyanea E
ANCA9 Anemone caroliniana Walter Carolina anemone IN (X), TN (E), WI (E)
MACA Macbridea caroliniana (Walter) S.F. Blake Carolina birds-in-a-nest NC (T)
TRCA Trautvetteria caroliniensis (Walter) Vail Carolina bugbane IN (X), PA (R)
PHCA6 Phalaris caroliniana Walter Carolina canarygrass MD (E, X)
DRRE2 Draba reptans (Lam.) Fernald Carolina draba CT (SC), MI (T), NJ (E), NY (T), OH (T), PA (X), RI (H)
ELCA3 Elephantopus carolinianus Raeusch. Carolina elephantsfoot NJ (E), PA (E)
CACA Cabomba caroliniana A. Gray Carolina fanwort IN (X), KY (T)
GECAC4 Geranium carolinianum L. var. carolinianum Carolina geranium NH (E)
GECAC Geranium carolinianum L. var. confertiflorum Fernald NH (E)
GECAS Geranium carolinianum L. var. sphaerospermum (Fernald) Breitung Carolina geranium NY (T)
SOPU3 Solidago pulchra Small Carolina goldenrod NC (E)
PACA13 Parnassia caroliniana Michx. Carolina grass of Parnassus FL (E), NC (E)
LICA31 Lilaeopsis carolinensis J.M. Coult. & Rose Carolina grasswort NC (T)
TSCA2 Tsuga caroliniana Engelm. Carolina hemlock TN (T)
DECA3 Delphinium carolinianum Walter Carolina larkspur FL (E), KY (T)
KACA2 Kalmia carolina Small Carolina laurel
KAANC Kalmia angustifolia L. var. carolina (Small) Fernald TN (PX, E)
PHCA9 Phyllanthus caroliniensis Walter Carolina leaf-flower OH (E), PA (E)
LIMI Lilium michauxii Poir. Carolina lily FL (E)
AZCA Azolla caroliniana Willd. Carolina mosquitofern IN (T), NY (EV)
SCPAC Scleria pauciflora Muhl. ex Willd. var. caroliniana (Willd.) Alph. Wood Carolina nutrush CT (E), NY (E)
DAEP2 Danthonia epilis Scribn. Carolina oatgrass TN (SC)
PLCA11 Plagiomnium carolinianum (L.E. Anderson) T. Kop. Carolina plagiomnium moss
MNCA Mnium carolinianum L.E. Anderson TN (SC)
LICA13 Lithospermum caroliniense (Walter ex J.F. Gmel.) MacMill. Carolina puccoon OH (T), PA (E)
LICAC9 Lithospermum caroliniense (Walter ex J.F. Gmel.) MacMill. var. croceum (Fernald) Cronquist Carolina puccoon
LICAC7 Lithospermum caroliniense (Walter ex J.F. Gmel.) MacMill. ssp. croceum (Fernald) Cusick NY (E)
LACA5 Lachnanthes caroliana (Lam.) Dandy Carolina redroot CT (E), MD (E), MA (SC), NY (E), RI (T), TN (E)
SACA20 Saxifraga caroliniana A. Gray Carolina saxifrage TN (E)
CACA15 Carex caroliniana Schwein. Carolina sedge NY (E)
HACA3 Halesia carolina L. Carolina silverbell IL (E), OH (PRX)
VICA2 Vicia caroliniana Walter Carolina vetch NJ (E)
RUCA4 Ruellia caroliniensis (J.F. Gmel.) Steud. Carolina wild petunia NJ (E), PA (X)
XYCA Xyris caroliniana Walter Carolina yelloweyed grass NJ (E)
SCMA2 Scrophularia marilandica L. carpenter's square ME (PX), RI (T)
DACA9 Dalea carthagenensis (Jacq.) J.F. Macbr. Cartagena prairie clover FL (E)
LICA14 Linum carteri Small Carter's flax FL (E)
BACO2 Basiphyllaea corallicola (Small) Ames Carter's orchid FL (E)
WACA Warea carteri Small Carter's pinelandcress E FL (E)
RAPE7 Ramalina petrina Bowler & Rundel cartilage lichen OH (T)
RAPO60 Ramalina pollinaria (Westr.) Ach. cartilage lichen OH (E)
SPCA6 Spiranthes casei Catling & Cruise Case's lady's tresses NH (E), NY (EV), PA (E)
PEDI6 Penstemon discolor D.D. Keck Cataiina beardtongue AZ (HS)
CETR4 Cercocarpus traskiae Eastw. Catalina Island mountain mahogany E CA (E)
SCCA18 Scopelophila cataractae (Mitt.) Broth. cataract scopelophila moss TN (SC)
VIPA7 Vitis palmata Vahl catbird grape IN (R)
LELE2 Leersia lenticularis Michx. catchfly grass MD (E), OH (E)
CACA101 Calystegia catesbeiana Pursh Catesby's false bindweed FL (E)
CATY Carex typhina Michx. cattail sedge CT (SC), ME (PX), MA (T), MI (T), NY (T), PA (E)
PRSP2 Primula specuicola Rydb. cavedwelling primrose AZ (SR)
PRHU Primula hunnewellii Fernald AZ (SR)
ULCR Ulmus crassifolia Nutt. cedar elm TN (SC)
HYFR Hypericum frondosum Michx. cedarglade St. Johnswort IN (X)
ELSE2 Elaphoglossum serpens Maxon & Morton ex Maxon cerro de punta jayuya E PR (E)
SCAM Schwalbea americana L. chaffseed E CT (SC), FL (E), GA (E), KY (H), MD (E, X), NJ (E), NC (E), TN (PX, E)
ANMI4 Anagallis minima (L.) Krause chaffweed MD (E, X)
SCAM6 Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller chairmaker's bulrush
SCOL Scirpus olneyi A. Gray MI (T)
DUPUA2 Dudleya pulverulenta (Nutt.) Britton & Rose ssp. arizonica (Rose) Moran chalk dudleya AZ (SR)
ACLE Acer leucoderme Small chalk maple
ACSAL Acer saccharum Marshall ssp. leucoderme (Small) Desmarais TN (SC)
AMCH6 Ammophila champlainensis Seymour Champlain beachgrass NY (E), VT (E)
HEWH Hesperoyucca whipplei (Torr.) Baker chaparral yucca
YUWHW Yucca whipplei Torr. var. whipplei AZ (SR)
PACH16 Paspalidium chapmanii (Vasey) Pohl Chapman's bristlegrass
SECH2 Setaria chapmanii (Vasey) Pilg. FL (E)
PIPL Pinguicula planifolia Chapm. Chapman's butterwort FL (T)
VECH2 Verbesina chapmanii J.R. Coleman Chapman's crownbeard FL (T)
RHCH5 Rhododendron chapmanii A. Gray Chapman's rhododendron E FL (E)
CACH9 Carex chapmanii Steud. Chapman's sedge FL (T), TN (T)
TRFLC Tridens flavus (L.) Hitchc. var. chapmanii (Small) Shinners Chapman's tridens NJ (E)
ARCH4 Aristida chaseae Hitchc. Chase's threeawn E PR (E)
AGPL Agalinis plukenetii (Elliot) Raf. Chattahoochee false foxglove TN (PX, E)
GOTE Goodyera tesselata Lodd. checkered rattlesnake plantain MD (E, X), NJ (E), NY (EV), OH (PRX), PA (T)
CACA16 Carex castanea Wahlenb. chestnut sedge CT (E), MA (E), NH (E)
PRAN3 Prunus angustifolia Marshall Chickasaw plum NJ (E)
TOHI Tournefortia hirsutissima L. chiggery grapes FL (E)
PLCH3 Platanthera chorisiana (Cham.) Rchb. Chimissso's orchid WA (T)
BRPA2 Brodiaea pallida Hoover Chinese Camp brodiaea T CA (E)
COCH2 Conioselinum chinense (L.) Britton, Sterns & Poggenb. Chinese hemlockparsley IL (E), IN (E), MA (SC), NJ (E), NC (E), PA (E), WI (E)
CAPU9 Castanea pumila (L.) Mill. chinkapin KY (T), NJ (E)
QUMU Quercus muehlenbergii Engelm. chinkapin oak MA (T)
QUPR5 Quercus prinoides J.M. Coult., non Willd. IN (E)
MASO8 Malaxis soulei L.O. Williams Chiricahua adder's-mouth orchid
MAMA13 Malaxis macrostachya auct. non (Lex.) Kuntze AZ (SR)
ERKU Erigeron kuschei Eastw. Chiricahua fleabane AZ (SR)
AQTR Aquilegia triternata Payson Chiricahua Mountain columbine AZ (SR)
RUOR3 Rumex orthoneurus Rech. f. Chiricahua Mountain dock AZ (HS)
GEWI2 Gentianella wislizeni (Engelm.) J.M. Gillett Chiricahua Mountain dwarf gentian AZ (SR)
ECCH2 Echinocereus chisoensis W.T. Marshall Chisos Mountain hedgehog cactus T TX (T)
PRVI Prunus virginiana L. chokecherry TN (SC)
CIFOO Cirsium fontinale (Greene) Jeps. var. obispoense J.T. Howell Chorro Creek Bog thistle E CA (E)
CYLE8 Cylindropuntia leptocaulis (DC.) F.M. Knuth Christmas cactus
OPLE Opuntia leptocaulis DC. AZ (SR)
POAC4 Polystichum acrostichoides (Michx.) Schott Christmas fern MN (T), NY (EV)
CRIL2 Crossopetalum ilicifolium (Poir.) Kuntze Christmasberry FL (T)
PLMA6 Pleodendron macranthum (Baill.) v. Tiegh. chupa gallo E
ARDI4 Aristida dichotoma Michx. churchmouse threeawn MI (PREX)
ISHO2 Isodendrion hosakae H. St. John cindercone isodendrion E
OSCI Osmunda cinnamomea L. cinnamon fern FL (CE), IA (E), NY (EV)
VACH3 Vachellia choriophylla (Benth.) Seigler & Ebinger cinnecord
ACCH Acacia choriophylla Benth. cinnecord FL (E)
CIPI70 Cirriphyllum piliferum (Hedw.) Grout cirriphyllum moss KY (T)
PRCOC Prosthechea cochleata (L.) W.E. Higgins var. cochleata clamshell orchid
ENCO3 Encyclia cochleata (L.) Dressler FL (E)
ASAM Asclepias amplexicaulis Sm. clasping milkweed NH (T), RI (SC), VT (T)
LYAM2 Lycopus amplectens Raf. clasping water horehound CT (SC), IN (E), MD (E)
BODE2 Boltonia decurrens (Torr. & A. Gray) Alph. Wood claspingleaf doll's daisy T IL (T), MO (E)
POPE7 Potamogeton perfoliatus L. claspingleaf pondweed OH (PRX)
HYGY Hypericum gymnanthum Engelm. & A. Gray claspingleaf St. Johnswort IN (E), MD (E), OH (E), PA (X)
STAM2 Streptopus amplexifolius (L.) DC. claspleaf twistedstalk AZ (SR), NJ (E), PA (E), TN (T)
STAMA2 Streptopus amplexifolius (L.) DC. var. amplexifolius claspleaf twistedstalk
STAMA Streptopus amplexifolius (L.) DC. var. americanus Schult. & Schult. f. CT (T)
FICL Fissidens clebschii Steere Clebsch's fissidens moss TN (SC)
PHBI3 Phlox bifida Beck cleft phlox MI (T)
PHBIB Phlox bifida Beck ssp. bifida cleft phlox KY (T)
PHBIS Phlox bifida Beck ssp. stellaria (A. Gray) Wherry cleft phlox IN (E), KY (T), TN (T)
OECL3 Oenothera clelandii W. Dietr., P.H. Raven & W.L. Wagner Cleland's evening primrose OH (E)
SCSA4 Schiedea sarmentosa O. Deg. & Sherff cliff schiedea E
SEGL3 Sedum glaucophyllum R.T. Clausen cliff stonecrop MD (E)
SIPE5 Silene perlmanii W.L. Wagner, D.R. Herbst & Sohmer cliffface catchfly E
ALVI6 Alsinidendron viscosum (H. Mann) Sherff climbing alsinidendron E
TRDI Trachelospermum difforme (Walter) A. Gray climbing dogbane IN (R), MD (E)
MISC Mikania scandens (L.) Willd. climbing hempvine IN (E), ME (PX), MI (PREX), NH (T)
MAOB2 Matelea obliqua (Jacq.) Woodson climbing milkvine IL (T), MD (E), OH (T), PA (E)
GOOB Gonolobus obliquus (Jacq.) R. Br. ex Schult. IN (R)
MIHE2 Microgramma heterophylla (L.) Wherry clinging snakefern FL (E)
STCL Stachys clingmanii Small Clingman's hedgenettle IN (E), MD (E), TN (T)
TRCL4 Trichophorum clintonii (A. Gray) S.G. Sm. Clinton's bulrush ME (SC)
SCCL2 Scirpus clintonii A. Gray NY (E)
DRCL Dryopteris clintoniana (D.C. Eaton) Dowell Clinton's woodfern IN (X), NY (EV), OH (E), PA (T)
GEAN Gentiana andrewsii Griseb. closed bottle gentian MD (T), MA (T), NH (T), NY (EV), RI (H), VT (T)
GERU Gentiana rubricaulis Schwein. closed gentian ME (PX)
CANOI Carex norvegica Retz. ssp. inferalpina (Wahlenb.) Hultén closedhead sedge
CAME9 Carex media R. Br. MI (T), WI (E)
RUCH Rubus chamaemorus L. cloudberry MN (T), NH (E)
MYJU Myrsine juddii Hosaka cloudswept colicwood E
GRCL Grusonia clavata (Engelm.) H. Rob. club cholla
OPCL Opuntia clavata Engelm. AZ (SR)
SESE Selaginella selaginoides (L.) P. Beauv. ex Mart. & Schrank club spikemoss ME (T), MN (E), WI (E)
ODCL Odontosoria clavata L. clubbed creepingfern
SPCL2 Sphenomeris clavata (L.) Maxon FL (E)
CALY4 Cassiope lycopodioides (Pall.) D. Don clubmoss mountain heather WA (S)
RHGL3 Rhynchospora glomerata (L.) Vahl clustered beaksedge IL (E), MD (T), NJ (E)
SAOD Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe clustered blacksnakeroot MA (T)
SAGR6 Sanicula gregaria E.P. Bicknell NH (T)
ORFA Orobanche fasciculata Nutt. clustered broomrape IL (E), IN (E), IA (E), MI (T), WI (T)
SPGL Sparganium glomeratum (Beurling ex Laest.) L. Neum. clustered bur-reed WI (T)
FEPA2 Festuca paradoxa Desv. clustered fescue IN (E), MD (E, X), PA (E), TN (SC)
CRCO26 Crataegus compacta Sarg. clustered hawthorn NY (E)
CYFA Cypripedium fasciculatum Kellogg ex S. Watson clustered lady's slipper WA (S)
OLUN Oldenlandia uniflora L. clustered mille graines KY (E), NY (E)
PYMU Pycnanthemum muticum (Michx.) Pers. clustered mountainmint KY (T), ME (PX), MI (T), NY (T)
CATR Callirhoe triangulata (Leavenworth) A. Gray clustered poppymallow IN (X), IA (E)
CACU3 Carex cumulata (L.H. Bailey) Fernald clustered sedge CT (E), IN (E), NH (T), NJ (E), NY (T), RI (SC)
AMHEC Amorpha herbacea Walter var. crenulata (Rydb.) Isely clusterspike false indigo
AMCR5 Amorpha crenulata Rydb. E FL (E)
ASLEC2 Astragalus lentiginosus Douglas ex Hook. var. coachellae Barneby ex Shreve & Wiggins Coachella milkvetch E
ECWA Echinochloa walteri (Pursh) A. Heller coast cockspur grass PA (E)
EREL13 Erythronium elegans Hammond & K.L. Chambers Coast Range fawnlily OR (T)
GAHI Galium hispidulum Michx. coastal bedstraw MD (E), NJ (E)
CHCU4 Chamaesyce cumulicola Small coastal dune sandmat FL (E)
ASTET Astragalus tener A. Gray var. titi (Eastw.) Barneby coastal dunes milkvetch E CA (E)
TRRA6 Triantha racemosa (Walter) Small coastal false asphodel
TORA Tofieldia racemosa (Walter) Britton, Sterns & Poggenb. MD (E, X), NJ (E), TN (E)
CYPEP Cyperus pennatiformis Kük. var. pennatiformis coastal flatsedge
MAPE5 Mariscus pennatiformis (Kük.) T. Koyama E
INMI Indigofera miniata Ortega coastal indigo
INMIL Indigofera miniata Ortega var. leptosepala (Nutt. ex Torr. & A. Gray) B.L. Turner AR (T)
POAR4 Polygonella articulata (L.) Meisn. coastal jointweed IN (R), IA (E), PA (E)
ERRE Eragrostis refracta (Muhl.) Scribn. coastal lovegrass MD (T)
GLMA5 Glandularia maritima (Small) Small coastal mock vervain
VEMA3 Verbena maritima Small FL (E)
PAAMA2 Panicum amarum Elliot var. amarulum (Hitchc. & Chase) P.G. Palmer coastal panicgrass PA (E)
RHST2 Rhynchospora stenophylla Chapm. coastal plain beaksedge FL (T)
SIFU2 Sisyrinchium fuscatum E.P. Bicknell coastal plain blue-eyed grass MD (E, X), MA (SC), RI (H)
SIAR2 Sisyrinchium arenicola E.P. Bicknell PA (X)
EUDU6 Eutrochium dubium (Willd. ex Poir.) E.E. Lamont coastal plain joe pye weed
EUDU2 Eupatoriadelphus dubius (Willd. ex Poir.) King & H. Rob. coastal plain joe pye weed
EUDU Eupatorium dubium Willd. ex Poir. ME (T)
CACR5 Carex crebriflora Wiegand coastal plain sedge KY (T)
SACA5 Salix caroliniana Michx. coastal plain willow OH (T), PA (E)
XYAM Xyris ambigua Bey. ex Kunth coastal plain yelloweyed grass TN (E)
CHSKS Chamaesyce skottsbergii (Sherff) Croizat & O. Deg. var. skottsbergii coastal sandmat
CHSKK Chamaesyce skottsbergii (Sherff) Croizat & O. Deg. var. kalaeloana (Sherff) O. Deg. & I. Deg. E
CAEX7 Carex exilis Dewey coastal sedge CT (E), MD (E), NH (T), NC (T), RI (SC), WI (T)
AMOB2 Amelanchier obovalis (Michx.) Ashe coastal serviceberry MD (E), PA (E)
MIBI Microseris bigelovii (A. Gray) Sch. Bip. coastal silverpuffs WA (PX)
CLAL3 Clethra alnifolia L. coastal sweetpepperbush ME (SC), TN (T)
STMO Stahlia monosperma (Tul.) Urb. cobana negra T
BAAR Baptisia arachnifera Duncan cobwebby wild indigo E GA (E)
COPA29 Coccocarpia palmicola (Spreng.) Arv. & D.J. Galloway coccocarpia lichen MN (T)
ESRO Escobaria robbinsiorum (W.H. Earle) D.R. Hunt Cochise foxtail cactus
CORO3 Coryphantha robbinsiorum (W.H. Earle) A.D. Zimmerman T AZ (HS)
PECO17 Perityle cochisensis (Niles) A. Powell Cochise rockdaisy AZ (SR)
SECO Sedum cockerellii Britton Cockerell's stonecrop AZ (SR)
SEGR Sedum griffithsii Rose AZ (SR)
CACI5 Carex circinata C.A. Mey. coiled sedge WA (S)
COCAA Corydalis caseana A. Gray ssp. aquae-gelidae (M. Peck & Wilson) Zetterlund & Lidén coldwater fumewort
COAQ Corydalis aquae-gelidae M. Peck & Wilson WA (T)
CACO21 Carex collinsii Nutt. Collins' sedge CT (SC), NY (E), PA (T), RI (H)
AQCOP Aquilegia coerulea James var. pinetorum (Tidestr.) Payson ex Kearney & Peebles Colorado blue columbine
AQCAP Aquilegia caerulea James var. pinetorum (Tidestr.) Payson ex Kearney & Peebles, orth. var. AZ (SR)
CYACC2 Cylindropuntia acanthocarpa (Engelm. & Bigelow) F.M. Knuth var. coloradensis (L.D. Benson) Pinkava Colorado buckhorn cholla
OPACC Opuntia acanthocarpa Engelm. & Bigelow var. coloradensis L.D. Benson AZ (SR), NV (CY)
OECOC Oenothera coloradensis (Rydb.) W.L. Wagner & Hoch ssp. coloradensis Colorado butterfly plant
GANEC Gaura neomexicana Woot. ssp. coloradensis (Rydb.) P.H. Raven & Gregory Colorado butterfly plant
GANEC2 Gaura neomexicana Woot. var. coloradensis (Rydb.) Munz T
ASCO9 Astragalus columbianus Barneby Columbian milkvetch WA (T)
WOCO Wolffia columbiana Karst. Columbian watermeal ME (T)
SERI4 Sericocarpus rigidus Lindl. Columbian whitetop aster
ASCU2 Aster curtus Cronquist OR (T), WA (S)
ROCO3 Rorippa columbiae (Suksd. ex B.L. Rob.) Suksd. ex Howell Columbian yellowcress WA (T)
NECO2 Neostapfia colusana (Burtt Davy) Burtt Davy Colusagrass T CA (E)
PRPE Proserpinaca pectinata Lam. combleaf mermaidweed ME (SC), MI (E), NH (E), NY (T), PA (X), RI (SC)
ARHU3 Arctomecon humilis Coville common bearpoppy E
UTMA Utricularia macrorhiza Leconte common bladderwort KY (E)
GISP3 Githopsis specularioides Nutt. common bluecup WA (S)
EUPEC Eupatorium perfoliatum L. var. colpophilum Fernald & Grisc. common boneset ME (PX)
PIVU Pinguicula vulgaris L. common butterwort ME (T), NH (E), NY (T), WI (E)
HEMA80 Heracleum maximum W. Bartram common cowparsnip TN (SC)
HELA4 Heracleum lanatum Michx. KY (E)
EUNE3 Euphrasia nemorosa (Pers.) Wallr. common eyebright MI (T)
MATE4 Mammillaria tetrancistra Engelm. common fishhook cactus AZ (SR), NV (CY)
HYHI2 Hypoxis hirsuta (L.) Coville common goldstar ME (PX), NH (T)
CEOC Celtis occidentalis L. common hackberry NH (T)
PTTR Ptelea trifoliata L. common hoptree NJ (E), NY (E), PA (T)
JUCO6 Juniperus communis L. common juniper IL (T), IN (R), MD (E, X), OH (E)
JUCOD Juniperus communis L. var. depressa Pursh common juniper KY (T)
ATFI Athyrium filix-femina (L.) Roth common ladyfern FL (T), NY (EV)
ARAC3 Arnica acaulis (Walter) Britton, Sterns & Poggenb. common leopardbane FL (E), MD (E), PA (E)
ADCA Adiantum capillus-veneris L. common maidenhair KY (T), NC (E)
HIVU2 Hippuris vulgaris L. common mare's-tail IN (X), ME (SC), NH (T), NY (E), VT (E)
GAPA3 Galium palustre L. common marsh bedstraw OH (E), TN (SC)
BOLU Botrychium lunaria (L.) Sw. common moonwort ME (E), MN (T), NY (E), VT (E), WA (S), WI (E)
PHOP Physocarpus opulifolius (L.) Maxim., orth. cons. common ninebark FL (E)
DIVI5 Diospyros virginiana L. common persimmon CT (SC), NY (T)
ZAAM Zanthoxylum americanum Mill. common pricklyash FL (E), MD (E), NH (E), TN (SC)
SYAL Symphoricarpos albus (L.) S.F. Blake common snowberry KY (E), MD (T)
SYALA Symphoricarpos albus (L.) S.F. Blake var. albus common snowberry IL (E), MA (E), OH (PRX)
DAWH2 Dasylirion wheeleri S. Watson common sotol AZ (SR)
BLNAR Blennosperma nanum (Hook.) S.F. Blake var. robustum J.T. Howell common stickyseed CA (R)
SYTI Symplocos tinctoria (L.) L'Hér. common sweetleaf TN (SC)
PHDID Physaria didymocarpa (Hook.) A. Gray var. didymocarpa common twinpod WA (S)
ILVE Ilex verticillata (L.) A. Gray common winterberry AR (T), IA (E), NY (EV)
CUCO2 Cuscuta compacta Juss. ex Choisy compact dodder OH (PRX)
SILA3 Silphium laciniatum L. compassplant MI (T), OH (E), TN (T)
SILAL2 Silphium laciniatum L. var. laciniatum compassplant KY (E)
SPCOC2 Sporobolus compositus (Poir.) Merr. var. compositus composite dropseed
SPAS Sporobolus asper (P. Beauv.) Kunth CT (SC), ME (E), RI (SC), VT (E)
ELTU Eleocharis tuberculosa (Michx.) Roem. & Schult. cone-cup spikerush ME (E), NH (E), NY (T), PA (X)
ERCR3 Eriogonum crocatum Davidson Conejo buckwheat CA (R)
DUABP Dudleya abramsii Rose ssp. parva (Rose & Davidson) Bartel Conejo dudleya T
TRRE6 Trillium reliquum J.D. Freeman Confederate wakerobin E GA (E)
LECO4 Lewisia congdonii (Rydb.) S. Clay Congdon's lewisia CA (R)
ERCO16 Eriophyllum congdonii Brandegee Congdon's woolly sunflower CA (R)
COCO26 Collema conglomeratum Hoffm. conglomerate jelly lichen OH (E)
SPCO14 Sphagnum contortum Schultz contorted sphagnum NJ (E)
LACO6 Lasthenia conjugens Greene Contra Costa goldfields E
ERCAA Erysimum capitatum (Douglas ex Hook.) Greene var. angustatum (Greene) G. Rossb. Contra Costa wallflower E CA (E)
KUCO Kumlienia cooleyae (Vasey & Rose) Greene Cooley's false buttercup
RACO2 Ranunculus cooleyae Vasey & Rose WA (S)
THCO5 Thalictrum cooleyi H.E. Ahles Cooley's meadow-rue E FL (E), GA (E), NC (E)
JUCO8 Justicia cooleyi Monachino & Leonard Cooley's water-willow E FL (E)
ASNE2 Astragalus neglectus (Torr. & A. Gray) Sheldon Cooper's milkvetch NY (E), OH (E), PA (E), WI (E)
CRIN3 Crataegus intricata Lange Copenhagen hawthorn IN (R)
CRBI5 Crataegus biltmoreana Beadle IN (E)
IRFU Iris fulva Ker Gawl. copper iris KY (E), TN (T)
ZELO Zephyranthes longifolia Hemsl. copper zephyrlily AZ (SR)
HYDE2 Hypericum denticulatum Walter coppery St. Johnswort IN (T), MD (E), NY (E), OH (E), PA (X)
THIN3 Thelypteris inabonensis Proctor cordillera maiden fern E PR (E)
LEFL Leitneria floridana Chapm. corkwood FL (T)
DOIN2 Doellingeria infirma (Michx.) Greene cornel-leaf whitetop MA (E)
ASIN2 Aster infirmus Michx. RI (H)
BOMA7 Bolboschoenus maritimus (L.) Palla cosmopolitan bulrush
SCMA8 Schoenoplectus maritimus (L.) Lye cosmopolitan bulrush
SCMA Scirpus maritimus L. NJ (E), NY (E), RI (SC)
SCPA4 Scirpus paludosus A. Nelson IL (E)
SCPAA4 Scirpus paludosus A. Nelson var. atlanticus Fernald CT (SC)
JACO Jatropha costaricensis G.L. Webster & Poveda Costa Rican jatropha E
BECO5 Beloglottis costaricensis (Rchb. f.) Schltr. Costa Rican lady's tresses
SPCO6 Spiranthes costaricensis Rchb. f. FL (E)
ASCO13 Astragalus cottonii M.E. Jones Cotton's milkvetch
ASAUO Astragalus australis (L.) Lam. var. olympicus Isely WA (T)
ECPOP Echinocactus polycephalus Engelm. & Bigelow var. polycephalus cottontop cactus AZ (SR), NV (CY)
ECPOX Echinocactus polycephalus Engelm. & Bigelow var. xeranthemoides J.M. Coult. cottontop cactus AZ (SR), NV (CY)
CAEX10 Camissonia exilis (P.H. Raven) P.H. Raven Cottonwood Springs suncup AZ (SR)
CHGOC Chrysopsis gossypina (Michx.) Elliott ssp. cruiseana (Dress) Semple cottony goldenaster
CHCR4 Chrysopsis cruiseana Dress FL (E)
MAMA6 Mammillaria mainiae K. Brandegee counterclockwise nipple cactus AZ (SR)
PHCO30 Phacelia covillei S. Watson Coville's phacelia MD (E)
CYPU4 Cyrtopodium punctatum (L.) Lindl. cowhorn orchid FL (E)
CACO41 Calochortus coxii M. Godfrey & F. Callahan Cox's mariposa lily OR (E)
CEFE2 Ceanothus ferrisiae McMinn Coyote ceanothus E
NIAT Nicotiana attenuata Torr. ex S. Watson coyote tobacco WA (S)
TRCR4 Triphora craigheadii Luer Craighead's noddingcaps FL (E)
VAMA Vaccinium macrocarpon Aiton cranberry IL (E), TN (T)
BOPU2 Botrychium pumicola Coville ex Underw. Crater Lake grapefern OR (T)
CACR3 Carex crawei Dewey Crawe's sedge CT (T), IN (T), KY (SC), ME (E), NJ (E), NY (T)
CACR4 Carex crawfordii Fernald Crawford's sedge CT (SC), IL (E), PA (E)
GEVI4 Geum virginianum L. cream avens NY (E)
LAOC2 Lathyrus ochroleucus Hook. cream pea IL (T), IN (E), NJ (E), OH (T), PA (T)
DEOC2 Desmodium ochroleucum M.A. Curtis ex Canby cream ticktrefoil FL (E), MD (E), TN (E)
ARHIP Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins creamflower rockcress NH (E), OH (E)
ARHIA Arabis hirsuta (L.) Scop. var. adpressipilis (M. Hopkins) Rollins KY (E)
SPPO7 Spiranthes porrifolia Lindl. creamy lady's tresses WA (S)
EUSU7 Eurybia surculosa (Michx.) G.L. Nesom creeping aster
ASSU9 Aster surculosus Michx. OH (PRX)
MARE11 Mahonia repens (Lindl.) G. Don creeping barberry
MASO5 Mahonia sonnei Abrams CA (E)
ECCO3 Echinodorus cordifolius (L.) Griseb. creeping burhead IN (X), MD (E)
ERPR5 Eryngium prostratum Nutt. ex DC. creeping eryngo IL (E)
JUHO2 Juniperus horizontalis Moench creeping juniper IL (E), IA (T), NH (E), NY (E), VT (T)
LERE2 Lespedeza repens (L.) W. Bartram creeping lespedeza CT (SC), NY (R)
THRE3 Thelypteris reptans (J.F. Gmel.) Morton creeping maiden fern FL (E)
GLAC Glyceria acutiflora Torr. creeping mannagrass IN (E), KY (T), ME (E), MD (E), MI (PREX), NH (E), OH (E), TN (SC), VT (E)
CACH5 Carex chordorrhiza Ehrh. ex L. f. creeping sedge IL (E), IN (E), IA (E), MA (E), NY (T), PA (X), VT (E), WA (S)
SIPR Sibbaldia procumbens L. creeping sibbaldia NH (E)
GAHI2 Gaultheria hispidula (L.) Muhl. ex Bigelow creeping snowberry CT (T), MD (E), NJ (E), OH (PRX), PA (R), RI (T), WA (S)
ELFA Eleocharis fallax Weath. creeping spikerush NY (E), RI (H)
HYAD Hypericum adpressum Raf. ex W. Bartram creeping St. Johnswort CT (SC), IL (E), IN (E), KY (H), MD (E), MA (T), NJ (E), NY (E), PA (X), RI (T), TN (T)
DRCR4 Dryopteris cristata (L.) A. Gray crested woodfern NY (EV), TN (T), WA (S)
PLCR Platanthera cristata (Michx.) Lindl. crested yellow orchid FL (T), KY (T), MD (T), MA (E), NY (E), PA (X)
BRCA7 Brassia caudata (L.) Lindl. cricket orchid FL (E)
SALE4 Sarracenia leucophylla Raf. crimson pitcherplant FL (E), GA (E)
TIDI Tipularia discolor (Pursh) Nutt. crippled cranefly FL (T), MA (E), MI (T), NY (E), PA (R)
HACR4 Hackelia cronquistii J.L. Gentry Cronquist's stickseed OR (T)
SYPR6 Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom crookedstem aster MA (T)
ASPR4 Aster prenanthoides Muhl. ex Willd. CT (SC)
CRPA9 Croomia pauciflora (Nutt.) Torr. croomia FL (E), GA (T)
ERCR10 Eriogonum crosbyae Reveal Crosby's buckwheat OR (T)
BICO Bidens coronata (L.) Britton crowned beggarticks RI (SC)
ATCON Atriplex coronata S. Watson var. notatior Jeps. crownscale E
NOBI2 Nothoscordum bivalve (L.) Britton crowpoison IN (R), OH (T)
CAEM4 Castela emoryi (A. Gray) Moran & Felger crucifixion thorn AZ (SR)
COCU Colubrina cubensis (Jacq.) Brongn. Cuban nakedwood FL (E)
CAPRP Cardamine pratensis L. var. pratensis cuckoo flower
CAPRP2 Cardamine pratensis L. var. palustris Wimm. & Grab. IL (E), MA (T), NH (E), OH (E)
MAAC Magnolia acuminata (L.) L. cucumber-tree FL (E), IN (E)
ILOBO Ilex obcordata Sw. var. obcordata cuero de sapo
ILSI2 Ilex sintenisii (Urb.) Britton Sintenis' holly E PR (E)
SIHIA Sidalcea hickmanii Greene ssp. anomala C.L. Hitchc. Cuesta Pass checker CA (R)
VEVI4 Veronicastrum virginicum (L.) Farw. Culver's root MA (T), NY (T), VT (E)
DICU4 Diphyscium cumberlandianum Harvill Cumberland diphyscium moss OH (E)
COVE4 Conradina verticillata Jennison Cumberland false rosemary T KY (E), TN (T)
SIBR2 Silphium brachiatum Gattinger Cumberland rosinweed TN (E)
CAAR12 Calamovilfa arcuata K.E. Rogers Cumberland sandreed TN (E)
MICU3 Minuartia cumberlandensis (B.E. Wofford & Kral) McNeill Cumberland stitchwort KY (E)
ARCU5 Arenaria cumberlandensis B.E. Wofford & Kral E TN (E)
CLPE5 Cladonia perforata A. Evans cup lichen E FL (E)
SIPE2 Silphium perfoliatum L. cup plant MI (T)
DEBI3 Dennstaedtia bipinnata (Cav.) Maxon cuplet fern FL (E)
CALY2 Calycocarpum lyonii (Pursh) A. Gray cupseed IN (T)
COGL6 Cordia globosa (Jacq.) Kunth curaciao bush FL (E)
CLOC Clematis ochroleuca Aiton curlyheads MD (E, X)
RASC3 Ranunculus sceleratus L. cursed buttercup CT (SC), RI (SC)
LYCU2 Lythrum curtissii Fernald Curtiss' loosestrife FL (E), GA (T)
ASCU8 Asclepias curtissii A. Gray Curtiss' milkweed FL (E)
POCU5 Polygala curtissii A. Gray Curtiss' milkwort OH (E), PA (E)
LUAR5 Luzula arcuata (Wahlenb.) Sw. curved woodrush WA (S)
COCU2 Corydalis curvisiliqua Engelm. curvepod fumewort IA (E)
EROVV Eriogonum ovalifolium Nutt. var. vineum (Small) Jeps. Cushenbury buckwheat E
ASAL4 Astragalus albens Greene cushenbury milkvetch E
OXPAG Oxytheca parishii Parry var. goodmaniana Ertter Cushenbury oxytheca E
DRBRC Draba breweri S. Watson var. cana (Rydb.) Rollins cushion draba
DRCA4 Draba cana Rydb. ME (E), MI (T), VT (T), WA (S)
DRLA2 Draba lanceolata auct. non Royle NH (E), WI (E)
ESAL2 Escobaria alversonii (J.M. Coult.) N.P. Taylor cushion foxtail cactus
COVIA Coryphantha vivipara (Nutt.) Britton & Rose var. alversonii (J.M. Coult.) L.D. Benson AZ (SR)
LOCU Lomatium cusickii (S. Watson) J.M. Coult. & Rose Cusick's biscuitroot WA (PX)
ASCUC2 Astragalus cusickii A. Gray var. cusickii Cusick's milkvetch WA (S)
CUCU2 Cuscuta cuspidata Engelm. cusp dodder IN (X)
PUPAM Pulsatilla patens (L.) Mill. ssp. multifida (Pritz.) Zamels cutleaf anemone
ANNU5 Anemone nuttalliana DC. WA (S)
RULA3 Rudbeckia laciniata L. cutleaf coneflower RI (T)
OELA Oenothera laciniata Hill cutleaf evening primrose NY (E)
BODI2 Botrychium dissectum Spreng. cutleaf grapefern NY (EV)
THPI Thaspium pinnatifidum (Buckley) A. Gray cutleaf meadowparsnip KY (T), TN (SC)
CACO26 Cardamine concatenata (Michx.) Sw. cutleaf toothwort ME (E)
DELA5 Dentaria laciniata Muhl. ex Willd. NH (E)
MYPI Myriophyllum pinnatum (Walter) Britton, Sterns & Poggenb. cutleaf watermilfoil CT (SC), IN (E), KY (H), MA (SC), NJ (E), NY (E), RI (T), TN (T)
BEER Berula erecta (Huds.) Coville cutleaf waterparsnip IA (T), MI (T)
SOCU2 Solidago cutleri Fernald Cutler's alpine goldenrod NH (T)
PAAB Panicum abscissum Swallen cutthroat grass FL (E)
LUGL Ludwigia glandulosa Walter cylindricfruit primrose-willow IN (T), MD (E)
DIDID Dichanthelium dichotomum (L.) Gould var. dichotomum cypress panicgrass
DIDIM Dichanthelium dichotomum (L.) Gould ssp. mattamuskeetense (Ashe) Freckmann & Lelong MA (E)
PAAN10 Panicum annulum Ashe IN (E), PA (E)
PALU4 Panicum lucidum Ashe IN (E), PA (E)
PAMA10 Panicum mattamuskeetense Ashe IN (X)
PANU7 Panicum nudicaule Vasey FL (T)
PAYA2 Panicum yadkinense Ashe IL (E), IN (T), OH (E)
DIDIE Dichanthelium dichotomum (L.) Gould var. ensifolium (Baldw. ex Elliot) Gould & C.A. Clark cypress panicgrass
PAEN3 Panicum ensifolium Baldw. ex Elliot TN (SC)
PEGL7 Peperomia glabella (Sw.) A. Dietr. cypress peperomia FL (E)
CAJO2 Carex joorii L.H. Bailey cypress swamp sedge KY (E), NJ (E)
CRMU3 Cranichis muscosa Sw. cypress-knee helmet orchid FL (E)
CAPS Carex pseudocyperus L. cypress-like sedge CT (E), IN (E), NJ (E), OH (E), PA (E)
CADE6 Carex decomposita Muhl. cypressknee sedge IL (E), IN (T), KY (T), MD (E, X), MI (PREX), NY (E), OH (E)
ELLA Eleocharis lanceolata Fernald daggerleaf spikerush TN (SC)
GETE4 Gentianella tenella (Rottb.) Böerner Dane's dwarf gentian WA (S)
COGR6 Cochlearia groenlandica L. Danish scurvygrass
COOFA Cochlearia officinalis L. ssp. arctica (Schltdl.) Hultén WA (S)
RUNI Rubus nigerrimus (Greene) Rydb. dark raspberry WA (E)
CAVE7 Carex venusta Dewey darkgreen sedge MD (T)
CAVEM Carex venusta Dewey var. minor Boeckeler darkgreen sedge NY (E)
ALATC Allium atrorubens S. Watson var. cristatum (S. Watson) McNeal darkred onion
ALNEC Allium nevadense S. Watson var. cristatum (S. Watson) Ownbey AZ (SR)
DOPU Dodecatheon pulchellum (Raf.) Merr. darkthroat shootingstar AZ (SR)
RESE Reynosia septentrionalis Urb. darlingplum FL (T)
EUPU4 Euphorbia purpurea (Raf.) Fernald Darlington's glade spurge MD (E), NJ (E), OH (E), PA (E)
ECVID Echinocereus viridiflorus Engelm. var. davisii (A.D. Houghton) W.T. Marshall Davis' hedgehog cactus E TX (E)
LEDA2 Lepidium davisii Rollins Davis' pepperweed OR (T)
CADA Carex davisii Schwein. & Torr. Davis' sedge CT (E), MD (E, X), MA (E), MN (T), NY (T), TN (SC)
PEDE10 Penstemon deamii Pennell Deam's beardtongue IN (R)
RUDE4 Rubus deamii L.H. Bailey Deam's dewberry IN (X)
ACDE4 Acalypha deamii (Weath.) H.E. Ahles Deam's threeseed mercury IN (T), PA (X), TN (SC)
ACVID Acalypha virginica L. var. deamii Weath. OH (PRX)
LUPA6 Lupinus padre-crowleyi C.P. Sm. Dedecker lupine CA (R)
LYTR Lycopodium tristachyum Pursh deeproot clubmoss IN (T), NY (EV)
VAST Vaccinium stamineum L. deerberry VT (E)
PIPO4 Pilosocereus polygonus (Lam.) Byles & Rowley Deering's tree cactus
CERO3 Cereus robinii (Lem.) L.D. Benson FL (E)
PIBA4 Pilosocereus bahamensis (Britton) Byles & Rowley FL (E)
PIRO5 Pilosocereus robinii (Lem.) Byles & Rowley E
NOIN Nolina interrata Gentry Dehesa beargrass CA (E)
ARGLC4 Arctostaphylos glandulosa Eastw. ssp. crassifolia (Jeps.) P.V. Wells Del Mar manzanita E
IOUT Ionopsis utricularioides (Sw.) Lindl. delicate violet orchid FL (E)
BIBI3 Bidens bidentoides (Nutt.) Britton Delmarva beggarticks NY (R), PA (E)
SAPL Sagittaria platyphylla (Engelm.) J.G. Sm. delta arrowhead KY (T), OH (PRX), TN (SC)
ERRA5 Eryngium racemosum Jeps. delta eryngo CA (E)
CADE8 Carex densa (L.H. Bailey) L.H. Bailey dense sedge WA (S)
POGL10 Polygonum glabrum Willd. denseflower knotweed
PODE2 Polygonum densiflorum Meisn. MD (E), NJ (E)
LADE Lantana depressa Small depressed shrubverbena FL (E)
ASDE2 Astragalus desereticus Barneby deseret milkvetch T
AGDES Agave deserti Engelm. ssp. simplex Gentry desert agave AZ (SR)
LOFO Lomatium foeniculaceum (Nutt.) J.M. Coult. & Rose desert biscuitroot IA (E)
PHAR5 Pholisma arenarium Nutt. ex Hook. desert christmas tree AZ (HS)
AQDE Aquilegia desertorum (M.E. Jones) Cockerell ex A. Heller desert columbine AZ (SR)
CUDE2 Cuscuta denticulata Engelm. desert dodder WA (S)
OLTE Olneya tesota A. Gray desert ironwood AZ (SA, HR)
HEUN2 Hesperocallis undulata A. Gray desert lily AZ (SR)
CAKEK2 Calochortus kennedyi Porter var. kennedyi desert mariposa lily AZ (SR)
CAKEM Calochortus kennedyi Porter var. munzii Jeps. desert mariposa lily AZ (SR)
ROSTA Rosa stellata Woot. ssp. abyssa A. Phillips desert rose AZ (SR)
ESVID Escobaria vivipara (Nutt.) Buxbaum var. deserti (Engelm.) D.R. Hunt desert spinystar NV (CY)
COVID Coryphantha vivipara (Nutt.) Britton & Rose var. deserti (Engelm.) W.T. Marshall AZ (SR)
SCSP2 Sclerocactus spinosior (Engelm.) Woodruff & L.D. Benson desert valley fishhook cactus AZ (SR)
CHLIA Chilopsis linearis (Cav.) Sweet ssp. arcuata (Fosberg) Henrickson desert willow
CHLIA2 Chilopsis linearis (Cav.) Sweet var. arcuata Fosberg AZ (SA)
CHLIL2 Chilopsis linearis (Cav.) Sweet ssp. linearis desert willow
CHLIG Chilopsis linearis (Cav.) Sweet var. glutinosa (Engelm.) Fosberg AZ (SA)
YEXA Yermo xanthocephalus Dorn desert yellowhead T
ATHY Atriplex hymenelytra (Torr.) S. Watson desertholly AZ (SR)
PEDE17 Pediocactus despainii S.L. Welsh & Goodrich Despain's pincushion cactus E
LISC2 Liatris scariosa (L.) Willd. devil's bite ME (T)
SASA3 Sanicula saxatilis Greene devil's blacksnakeroot CA (R)
GRKU Grusonia kunzei (Rose) Pinkava devil's cholla
OPKU Opuntia kunzei Rose AZ (SR)
ELTO2 Elephantopus tomentosus L. devil's grandmother MD (E)
OPHU Opuntia humifusa (Raf.) Raf. devil's-tongue CT (SC), MA (E), NY (EV), PA (R)
SCVE3 Schiedea verticillata F. Br. Devils Slide schiedea E
OPHO Oplopanax horridus (Sm.) Miq. devilsclub MI (T)
ECHO Echinocactus horizonthalonius Lem. devilshead AZ (SR)
ECPS Echinocereus pseudopectinatus (N.P. Taylor) N.P. Taylor devilthorn AZ (SR)
CADE9 Carex deweyana Schwein. Dewey sedge NJ (E), OH (PRX)
SCAD Schiedea adamantis H. St. John Diamond Head schiedea E
ASRH3 Asplenium rhomboideum Brack. diamond spleenwort
ASFRI Asplenium fragile C. Presl var. insulare Morton E
STNIN Stenaria nigricans (Lam.) Terrell var. nigricans diamondflowers
HENI4 Hedyotis nigricans (Lam.) Fosberg MI (PREX)
HONI Houstonia nigricans (Lam.) Fernald IN (R)
SAPL2 Salix planifolia Pursh diamondleaf willow ME (T), MI (T), NH (T), VT (T), WI (T)
DIAS5 Dicranodontium asperulum (Mitt.) Broth. dicranodontium moss KY (E)
CAHE8 Carex heteroneura W. Boott different-nerve sedge WA (S)
DEGL4 Desmodium glabellum (Michx.) DC. Dillenius' ticktrefoil CT (SC)
ERUM2 Erythronium umbilicatum Parks & Hardin dimpled troutlily FL (E)
CAST16 Carex sterilis Willd. dioecious sedge CT (SC), ME (T), MA (T), MN (T), PA (E), RI (H), TN (PX, E)
BARO Bacopa rotundifolia (Michx.) Wettst. disk waterhyssop IN (E)
PEDI7 Penstemon dissectus Elliot dissected beardtongue GA (R)
PESE6 Penthorum sedoides L. ditch stonecrop RI (SC)
BOJE Botrychium jenmanii Underw. Dixie grapefern TN (T)
EUCA5 Eupatorium capillifolium (Lam.) Small dogfennel NJ (E)
ERAM5 Erythronium americanum Ker Gawl. dogtooth violet IA (T)
PRBOE Prosthechea boothiana (Lindl.) W.E. Higgins var. erythronioides (Small) W.E. Higgins dollar orchid
ENBO Encyclia boothiana auct. non (Lindl.) Dressler FL (E)
OPCH Opuntia chlorotica Engelm. & Bigelow dollarjoint pricklypear AZ (SR), NV (CY)
LODO Lobelia dortmanna L. Dortmann's cardinalflower NJ (E), NY (EV), PA (T), RI (SC), WA (T)
LIPU Liatris punctata Hook. dotted blazing star MI (PREX)
LIPUP Liatris punctata Hook. var. punctata dotted blazing star
LIPUN Liatris punctata Hook. var. nebraskana Gaiser Nebraska blazing star WI (E)
TRPU5 Trichomanes punctatum Poir. dotted bristle fern FL (E)
CAAM4 Calochortus ambiguus (M.E. Jones) Ownbey doubting mariposa lily AZ (SR)
TRDO Trifolium douglasii House Douglas' clover WA (S)
PODO4 Polygonum douglasii Greene Douglas' knotweed IA (E), ME (T), NH (T), NY (T), VT (E)
LIDOS2 Limnanthes douglasii R. Br. ssp. sulphurea (C.T. Mason) C.T. Mason Douglas' meadowfoam CA (E)
ASKED2 Astragalus kentrophyta A. Gray var. douglasii Barneby Douglas' spiny milkvetch WA (PX)
PSMEM Pseudotsuga menziesii (Mirb.) Franco var. menziesii Douglas-fir NV (CY)
VIRA Viburnum rafinesqueanum Schult. downy arrowwood MA (E), NH (E)
VIRAR Viburnum rafinesqueanum Schult. var. rafinesqueanum KY (T)
SMPU2 Smilax pulverulenta Michx. downy carrionflower NY (E)
SMHEP2 Smilax herbacea L. var. pulverulenta (Michx.) A. Gray OH (E)
GEPU5 Gentiana puberulenta J. Pringle downy gentian IN (T), KY (E), MD (E, X), MI (E), OH (E), TN (E)
SOPU Solidago puberula Nutt. downy goldenrod KY (SC), OH (E)
CRMO2 Crataegus mollis Scheele downy hawthorn NY (E)
LOPU Lobelia puberula Michx. downy lobelia PA (E)
GAVO Galactia volubilis (L.) Britton downy milkpea NJ (E), OH (T), PA (X)
BLCI Blephilia ciliata (L.) Benth. downy pagoda-plant CT (SC), IA (T), MA (E), NY (E)
CASE5 Castilleja sessiliflora Pursh downy paintedcup IL (E)
PHPI Phlox pilosa L. downy phlox MD (E), NJ (E), NY (E), PA (E)
PHPIS Phlox pilosa L. ssp. sangamonensis Levin & D.M. Sm. downy phlox IL (E)
GOPU Goodyera pubescens (Willd.) R. Br. downy rattlesnake plantain FL (E), NY (EV)
EPST Epilobium strictum Muhl. ex Spreng. downy willowherb IL (T), MD (E), OH (T), PA (E)
AUVI Aureolaria virginica (L.) Pennell downy yellow false foxglove NH (T)
VIPU3 Viola pubescens Aiton downy yellow violet RI (SC)
ARBU Arethusa bulbosa L. dragon's mouth CT (E), IN (X), MD (E, X), MA (T), NH (E), NY (T), NC (E), OH (E), PA (E), RI (E), VT (T)
CAPR12 Carex prasina Wahlenb. drooping sedge IL (T), WI (T)
CAAR3 Carex arctata Boott ex Hook. drooping woodland sedge IN (E), NJ (E), OH (E)
CILA2 Cinna latifolia (Trevis. ex Goepp.) Griseb. drooping woodreed MD (T), NJ (E), OH (E)
PRHOH Prosartes hookeri Torr. var. hookeri drops-of-gold
DIHO3 Disporum hookeri (Torr.) G. Nicholson MI (E)
POCR Polygala cruciata L. drumheads CT (SC), IA (E), KY (E), ME (PX), MD (T), MN (E), OH (E), PA (E), RI (SC)
SYDRD Symphyotrichum drummondii (Lindl.) G.L. Nesom var. drummondii Drummond's aster
ASDR Aster drummondii Lindl. OH (T)
SYDRT Symphyotrichum drummondii (Lindl.) G.L. Nesom var. texanum (Burgess) G.L. Nesom Drummond's aster
ASDRT Aster drummondii Lindl. var. texanus (Burgess) A.G. Jones KY (T)
PODRB2 Potentilla drummondii Lehm. ssp. breweri (S. Watson) Ertter Drummond's cinquefoil
POBR6 Potentilla breweri S. Watson WA (S)
LIDR3 Lipocarpha drummondii (Nees) G. Tucker Drummond's halfchaff sedge OH (E)
HEDR3 Hemicarpha drummondii Nees IN (X)
DRDR Dryas drummondii Richardson ex Hook. Drummond's mountain-avens WA (S)
PTDR2 Ptychomitrium drummondii (Wilson) Sull. Drummond's ptychomitrium moss OH (E)
ARDR Arabis drummondii A. Gray Drummond's rockcress IN (E), NJ (E), NY (E), OH (E), RI (SC), VT (E)
LEDI Lechea divaricata Shuttlw. ex Britton drysand pinweed FL (E)
CASI12 Carex siccata Dewey dryspike sedge ME (T), NJ (E), OH (E), VT (E)
CAAE Carex aenea Fernald NC (E), PA (X)
CAFO3 Carex foenea Willd. CT (SC), TN (T), VT (E), WA (S)
LEDE3 Lesquerella densipila Rollins Duck River bladderpod TN (T)
LECO10 Lesquerella congesta Rollins Dudley Bluffs bladderpod T
PHOB Physaria obcordata Rollins Dudley Bluffs twinpod T
PEDU Pedicularis dudleyi Elmer Dudley's lousewort CA (R)
JUDU2 Juncus dudleyi Wiegand Dudley's rush ME (SC)
ESDU Escobaria duncanii (Hester) Backeb. Duncan's foxtail cactus NM (E)
TERO Tetramolopium rockii Sherff dune tetramolopium T
CADU Calochortus dunnii Purdy Dunn's mariposa lily CA (R)
ALCA2 Allium campanulatum S. Watson dusky onion WA (S)
PUPU3 Puccinellia pumila (Vasey) Hitchc. dwarf alkaligrass RI (H)
RHAT Rhododendron atlanticum (Ashe) Rehder dwarf azalea NJ (E), PA (E)
VACE Vaccinium cespitosum Michx. dwarf bilberry MI (T), NY (E), WI (E)
TRPE2 Trichomanes petersii A. Gray dwarf bristle fern AR (T), NC (T), TN (T)
AMPU4 Ambrosia pumila (Nutt.) A. Gray dwarf bur ragweed E
PRPY Prosthechea pygmaea (Hook.) W.E. Higgins dwarf butterfly orchid
ENPY Encyclia pygmaea (Hook.) Dressler FL (E)
SIMAV Sidalcea malviflora (DC.) A. Gray ex Benth. ssp. virgata (Howell) C.L. Hitchc. dwarf checkerbloom WA (E)
QUPR Quercus prinoides Willd. dwarf chinkapin oak RI (SC)
IRCR Iris cristata Aiton dwarf crested iris MD (E), PA (E)
AMNA Amorpha nana Nutt. dwarf false indigo IA (T)
BLHU Bloomeria humilis Hoover dwarf goldenstar CA (R)
CRUN Crataegus uniflora Münchh. dwarf hawthorn NY (E), OH (E)
CORA4 Conyza ramosissima Cronquist dwarf horseweed OH (T)
GADU Gaylussacia dumosa (Andrews) Torr. & A. Gray dwarf huckleberry PA (E), TN (T)
GADUB Gaylussacia dumosa (Andrews) Torr. & A. Gray var. bigeloviana Fernald CT (T), NH (T), NY (E), RI (SC)
WIHO3 Wilkesia hobdyi H. St. John dwarf iliau E
IRLA Iris lacustris Nutt. dwarf lake iris T MI (T), WI (T)
VIEP Viola epipsila Ledeb. dwarf marsh violet MI (T)
ASMI4 Astragalus microcystis A. Gray dwarf milkvetch WA (S)
PORO3 Potentilla robbinsiana Oakes ex Rydb. dwarf mountain cinquefoil NH (E)
SCCO7 Scaevola coriacea Nutt. dwarf naupaka E
PLPU Plantago pusilla Nutt. dwarf plantain MD (E, X), NJ (E)
RUARA2 Rubus arcticus L. ssp. acaulis (Michx.) Focke dwarf raspberry
RUAC Rubus acaulis Michx. MI (E), WA (S)
PRNA Prenanthes nana (Bigelow) Torr. dwarf rattlesnakeroot ME (E), NY (E)
RUPU Rubus pubescens Raf. dwarf red blackberry IL (T)
SABI Salicornia bigelovii Torr. dwarf saltwort ME (SC), NH (T), NY (T)
EQSC Equisetum scirpoides Michx. dwarf scouringrush CT (E), IL (E), MA (SC)
ELPA5 Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer dwarf spikerush MI (T), NH (T), OH (E), PA (E)
ASPU10 Asplenium pumilum Sw. dwarf spleenwort FL (E)
CAPY5 Camissonia pygmaea (Douglas ex Lehm.) P.H. Raven dwarf suncup WA (T)
DRBR3 Drosera brevifolia Pursh dwarf sundew KY (E), TN (T)
FUPU Fuirena pumila (Torr.) Spreng. dwarf umbrella-sedge IN (T), NY (R), RI (E), WI (E)
IRVE Iris verna L. dwarf violet iris MD (E), OH (T), PA (E)
TRPU3 Trillium pusillum Michx. dwarf wakerobin NC (E)
TRPUP2 Trillium pusillum Michx. var. pusillum dwarf wakerobin KY (E), TN (E)
BEMI Betula minor (Tuck.) Fernald dwarf white birch ME (E), NY (E)
FOGA Fothergilla gardenii L. dwarf witchalder FL (E), GA (T)
HENA3 Hexastylis naniflora Blomquist dwarfflower heartleaf T NC (T)
ASER9 Asplenium erosum L. eared spleenwort
ASAU3 Asplenium auritum Sw. FL (E)
AGAU3 Agalinis auriculata (Michx.) S.F. Blake earleaf false foxglove IN (E), KY (E), MD (E), MN (E), OH (E), TN (E)
TOAU Tomanthera auriculata (Michx.) Raf. IL (T), MI (PREX), PA (E)
RHPR Rhododendron prinophyllum (Small) Millais early azalea NY (EV)
VIPA18 Viola ×palmata L. (pro sp.) [brittoniana or pedatifida × affinis or sororia] early blue violet
VIPA3 Viola palmata L. ME (PX), NH (E), RI (T)
POCU4 Poa cuspidata Nutt. early bluegrass IN (X), NY (E)
RAFA Ranunculus fascicularis Muhl. ex Bigelow early buttercup ME (T), MD (E), NH (E), NJ (E), PA (E)
SAVI5 Saxifraga virginiensis Michx. early saxifrage IL (E), IN (R), RI (SC)
HYNU Hypericum nudiflorum Michx. ex Willd. early St. Johnswort KY (H)
BRLA4 Bromus latiglumis (Shear) Hitchc. earlyleaf brome MD (E)
CALA60 Catapyrenium lachneum (Ach.) R. Sant. earth lichen OH (E)
LYTE2 Lysimachia terrestris (L.) Britton, Sterns & Poggenb. earth loosestrife KY (E), TN (E)
SYSU5 Symphyotrichum subulatum (Michx.) G.L. Nesom eastern annual saltmarsh aster ME (E)
ASSU5 Aster subulatus Michx. NY (T)
BAHA Baccharis halimifolia L. eastern baccharis PA (R)
MOBR2 Monarda bradburiana Beck eastern beebalm IN (E)
SIAT Sisyrinchium atlanticum E.P. Bicknell eastern blue-eyed grass IL (E), MI (T), OH (E), PA (E)
AMTAG Amsonia tabernaemontana Walter var. gattingeri Woodson eastern bluestar KY (T), TN (SC)
ELHY Elymus hystrix L. eastern bottlebrush grass ME (T)
ARPU3 Arceuthobium pusillum Peck eastern dwarf mistletoe CT (E), NJ (E), PA (T), RI (E)
ENBI Enemion biternatum Raf. eastern false rue anemone
ISBI2 Isopyrum biternatum (Raf.) Torr. & A. Gray FL (E)
STGR2 Stenanthium gramineum (Ker Gawl.) Morong eastern featherbells FL (E), IL (E), IN (E), MD (T), OH (T)
STGRM Stenanthium gramineum (Ker Gawl.) Morong var. micranthum Fernald eastern featherbells KY (T)
TEHE4 Tetraneuris herbacea Greene eastern fournerved daisy
HYHE4 Hymenoxys herbacea (Greene) Cusick T IL (E), MI (E), OH (E)
SIPO Silene polypetala (Walter) Fernald & B.G. Schub. eastern fringed catchfly E FL (E), GA (E)
TRDA3 Tripsacum dactyloides (L.) L. eastern gamagrass MA (E), NY (T), PA (E), RI (SC)
LICH Lilaeopsis chinensis (L.) Kuntze eastern grasswort CT (SC), ME (T), NH (T), NY (T), RI (H)
PECA8 Penstemon canescens (Britton) Britton eastern gray beardtongue IN (T), OH (T)
HYCO6 Hybanthus concolor (T.F. Forst.) Spreng. eastern greenviolet CT (SC), FL (E), IA (T), NJ (E)
DEPU2 Dennstaedtia punctilobula (Michx.) T. Moore eastern hayscented fern IL (E), MI (PREX)
DIPA9 Dirca palustris L. eastern leatherwood FL (E), MD (T)
THPA Thelypteris palustris Schott eastern marsh fern NY (EV)
GARE2 Galactia regularis (L.) Britton, Sterns & Poggenb. eastern milkpea PA (X)
CAAM8 Carex amphibola Steud. eastern narrowleaf sedge NJ (E), NY (E)
UTPU Utricularia purpurea Walter eastern purple bladderwort IN (R), MD (T), PA (R)
ECPU Echinacea purpurea (L.) Moench eastern purple coneflower FL (E), MI (PREX)
CECA4 Cercis canadensis L. eastern redbud CT (SC), NJ (E)
CASC13 Carex scabrata Schwein. eastern rough sedge IN (E)
PRPUD Prunus pumila L. var. depressa (Pursh) Gleason eastern sandcherry MA (T), NY (T)
EUSP3 Eurybia spectabilis (Aiton) G.L. Nesom eastern showy aster
ASSP11 Aster spectabilis Aiton CT (T), MD (E), NY (T), PA (E)
SYCO3 Symphyotrichum concolor (L.) G.L. Nesom eastern silver aster MA (E)
ASCO2 Aster concolor L. KY (T), MD (E), NY (E), RI (H)
PELA8 Penstemon laevigatus Aiton eastern smooth beardtongue NJ (E), OH (E)
CAST6 Carex straminea Willd. ex Schkuhr eastern straw sedge IN (T), KY (T), MI (E), NY (E)
SAPE8 Saxifraga pensylvanica L. eastern swamp saxifrage KY (H), ME (T), RI (SC), TN (E)
SAFO2 Saxifraga forbesii Vasey IN (E)
CAFL22 Calycanthus floridus L. eastern sweetshrub FL (E)
CAFLG Calycanthus floridus L. var. glaucus (Willd.) Torr. & A. Gray eastern sweetshrub KY (T)
CAFE5 Calycanthus fertilis Walter OH (PRX)
GAPR2 Gaultheria procumbens L. eastern teaberry IL (E)
DEHU3 Desmodium humifusum (Muhl. ex Bigelow) Beck eastern trailing ticktrefoil CT (SC), IN (E), MD (E, X), MA (E), NJ (E), NY (E)
XEAS Xerophyllum asphodeloides (L.) Nutt. eastern turkeybeard GA (R), KY (H), TN (T)
HYVI Hydrophyllum virginianum L. eastern waterleaf CT (SC), KY (SC), NH (T), TN (T)
PIST Pinus strobus L. eastern white pine IN (R)
PEAM2 Perideridia americana (Nutt. ex DC.) Rchb. eastern yampah IN (E), KY (T), OH (PRX), TN (E)
BIEA Bidens eatonii Fernald Eaton's beggarticks CT (SC), ME (T), MA (E), NJ (E)
DISP4 Dichanthelium spretum (Schult.) Freckmann Eaton's rosette grass
PAACD Panicum acuminatum Sw. var. densiflorum (Rand & Redf.) Lelong TN (E)
PASP9 Panicum spretum Schult. OH (E), PA (E)
SEEA Selaginella eatonii Hieron. ex Small Eaton's spikemoss FL (E)
ASPL Asplenium platyneuron (L.) Britton, Sterns & Poggenb. ebony spleenwort ME (SC), NY (EV)
HEEG Helianthus eggertii Small Eggert's sunflower KY (T), TN (T)
MAEH Malaxis ehrenbergii (Rchb. f.) Kuntze [excluded] Ehrenberg's adder's-mouth orchid AZ (SR)
GACAS Galium californicum Hook. & Arn. ssp. sierrae Dempster & Stebbins El Dorado bedstraw E CA (R)
OPPOA Opuntia polyacantha Haw. var. arenaria (Engelm.) Parfitt El Paso pricklypear
OPAR3 Opuntia arenaria Engelm. NM (E)
TESU Ternstroemia subsessilis (Britton) Kobuski el yunque colorado E PR (E)
PAIN11 Packera indecora (Greene) Á. Löve & D. Löve elegant groundsel
SEIN Senecio indecorus Greene MI (T), WI (T)
ASEU2 Astragalus eucosmus B.L. Rob. elegant milkvetch ME (PX)
DISM3 Diamorpha smallii Britton ex Small elf orpine TN (E)
CAGA3 Carex garberi Fernald elk sedge IL (E), IN (T), ME (SC), MN (T), NY (E), OH (E), PA (E), VT (T), WI (T)
CAGAB2 Carex garberi Fernald var. bifaria Fernald NH (E)
AGEL4 Agrostis elliottiana Schult. Elliott's bentgrass OH (PRX)
VAEL Vaccinium elliottii Chapm. Elliott's blueberry TN (E)
GECA10 Gentiana catesbaei Walter Elliott's gentian PA (X)
SOLA4 Solidago latissimifolia Mill. Elliott's goldenrod
SOEL2 Solidago elliottii Torr. & A. Gray CT (SC), NY (E), RI (SC)
JUEL Juncus elliottii Chapm. Elliott's rush KY (H), NJ (E)
ELEL4 Eleocharis elliptica Kunth elliptic spikerush PA (E)
DODEE Dodecatheon dentatum Hook. ssp. ellisiae (Standl.) H.J. Thomp. Ellis' shootingstar AZ (SR)
SOUL2 Solidago ulmifolia Muhl. ex Willd. elmleaf goldenrod ME (PX), VT (E)
FEEM Ferocactus emoryi (Engelm.) Orcutt Emory's barrel cactus AZ (SR)
CAEM2 Carex emoryi Dewey Emory's sedge NY (E)
BAVA3 Baccharis vanessae R.M. Beauch. Encinitis false willow T CA (E)
PIEN Picea engelmannii Parry ex Engelm. Engelmann spruce NV (CY)
SAEN Sagittaria engelmanniana J.G. Sm. Engelmann's arrowhead MD (T)
ECEN Echinocereus engelmannii (Parry ex Engelm.) Lem. Engelmann's hedgehog cactus NV (CY)
ECENA Echinocereus engelmannii (Parry ex Engelm.) Lem. var. acicularis L.D. Benson Engelmann's hedgehog cactus AZ (SR)
ECENA2 Echinocereus engelmannii (Parry ex Engelm.) Lem. var. armatus L.D. Benson Engelmann's hedgehog cactus AZ (SR)
ECENC Echinocereus engelmannii (Parry ex Engelm.) Lem. var. chrysocentrus (Engelm. & Bigelow) Rümpler Engelmann's hedgehog cactus AZ (SR)
ECENE Echinocereus engelmannii (Parry ex Engelm.) Lem. var. engelmannii Engelmann's hedgehog cactus AZ (SR)
ECENV Echinocereus engelmannii (Parry ex Engelm.) Lem. var. variegatus (Engelm. & Bigelow) Rümpler Engelmann's hedgehog cactus AZ (SR)
ASEN Asclepias engelmanniana Woodson Engelmann's milkweed IA (E)
ELEN Eleocharis engelmannii Steud. Engelmann's spikerush ME (PX), NY (E), OH (E)
DRAN Drosera anglica Huds. English sundew ME (E), WI (T)
TRHO3 Trichomanes holopterum Kunze entirewing bristle fern FL (E)
ENBR3 Entodon brevisetus (Hook. & Wilson) Lindb. entodon moss KY (E)
ENCO70 Entodon concinnus (De Not.) Par. entodon moss TN (SC)
STEP Stachys eplingii J.B. Nelson Epling's hedgenettle KY (E)
CEER2 Centella erecta (L. f.) Fernald erect centella MD (E)
DIER3 Diellia erecta Brack. erect island spleenwort E
POER2 Polygonum erectum L. erect knotweed NH (E), NY (E)
OPST2 Opuntia stricta (Haw.) Haw. erect pricklypear FL (T)
BIHY Bidens hyperborea Greene estuary beggarticks ME (SC), NY (E)
BIHYH Bidens hyperborea Greene var. hyperborea estuary beggarticks
BIHYC2 Bidens hyperborea Greene var. colpophila (Fernald & H. St. John) Fernald MA (E)
ERPA4 Eriocaulon parkeri B.L. Rob. estuary pipewort CT (T), ME (SC), MD (T), MA (E), PA (X)
CARE14 Carex recta Boott estuary sedge ME (T), MA (E)
COET Conradina etonia Kral & McCartney Eton rosemary E FL (E)
SWAL Swallenia alexandrae (Swallen) Söderst. & Decker Eureka dunegrass E CA (R)
OECAE2 Oenothera californica (S. Watson) S. Watson ssp. eurekensis (Munz & Roos) W. Klein Eureka Dunes evening primrose CA (R)
OEAVE Oenothera avita (W. Klein) W. Klein ssp. eurekensis (Munz & Roos) W. Klein E
SPEM2 Sparganium emersum Rehmann European bur-reed
SPCH Sparganium chlorocarpum Rydb. IL (E), OH (E)
SINI Silene nivea (Nutt.) Muhl. ex Otth evening campion MD (E), MN (T), NJ (E), OH (T), WI (T)
GESE Gelsemium sempervirens (L.) W.T. Aiton evening trumpetflower TN (SC)
STCA7 Stylosanthes calcicola Small Everglade Key pencilflower FL (E)
SMCO Smilax coriacea Spreng. Everglades greenbrier
SMHA Smilax havanensis auct. non Jacq. FL (T)
SPTE8 Spermacoce terminalis (Small) Kartesz & Gandhi Everglades Key false buttonweed FL (T)
ACWR4 Acoelorrhaphe wrightii (Griseb. & H. Wendl.) H. Wendl. ex Becc. Everglades palm FL (T)
ISHY Isoetes hyemalis D.F. Brunton evergreen quillwort FL (E)
BUFL2 Burmannia flava Mart. Fahkahatchee bluethread FL (E)
CABU Calypso bulbosa (L.) Oakes fairy slipper MI (T), NH (E), NY (E), VT (T), WI (T)
CABUA Calypso bulbosa (L.) Oakes var. americana (R. Br.) Luer fairy slipper AZ (SR)
CHLU Chamaelirium luteum (L.) A. Gray fairywand CT (E), IN (E), MA (E), NY (T)
RAAE Ranunculus aestivalis (L.D. Benson) Van Buren & Harper fall buttercup
RAACA Ranunculus acriformis A. Gray var. aestivalis L.D. Benson E
DIWI5 Dichanthelium wilcoxianum (Vasey) Freckmann fall rosette grass
PAWI5 Panicum wilcoxianum Vasey IN (R)
DICO6 Digitaria cognata (Schult.) Pilg. fall witchgrass PA (T)
NEFL Nemastylis floridana Small fallflowering pleatleaf FL (E)
MURA3 Munroidendron racemosum (Forbes) Sherff false 'ohe E
MAVI5 Manfreda virginica (L.) Salisb. ex Rose false aloe
AGVI6 Agave virginica L. OH (T)
BREUE Brickellia eupatorioides (L.) Shinners var. eupatorioides false boneset
KUEU Kuhnia eupatorioides L. NJ (E)
BREUF Brickellia eupatorioides (L.) Shinners var. floridana (R.W. Long) B.L. Turner false boneset
BRMO3 Brickellia mosieri (Small) Shinners FL (E)
ECPR Eclipta prostrata (L.) L. false daisy NY (E)
STLI2 Stenosiphon linifolius (Nutt. ex James) Heynh. false gaura AR (T)
CALU3 Carex lupuliformis Sartwell ex Dewey false hop sedge CT (E), IN (R), MA (E), MI (T), NJ (E), NY (R), OH (T), WI (E)
HASU3 Hasteola suaveolens (L.) Pojark. false Indian plantain MD (E)
CASU Cacalia suaveolens L. CT (E), IA (T), MN (E), NY (E), RI (H)
SYSU Synosma suaveolens (L.) Raf. ex Britton TN (T)
SCPU Schizachne purpurascens (Torr.) Swallen false melic CT (SC), IL (E), IN (E), KY (T), MD (E), NJ (E), OH (E)
FLPR Floerkea proserpinacoides Willd. false mermaidweed CT (E), IA (E), MN (T)
RHMI11 Rhus michauxii Sarg. false poison sumac E FL (E), GA (E), NC (SC, E)
COCA19 Conradina canescens (Torr. & A. Gray ex Benth.) A. Gray false rosemary
COBR5 Conradina brevifolia Shinners E FL (E)
HYPS Hypericum pseudomaculatum Bush false spotted St. Johnswort KY (H)
GELI2 Geocaulon lividum (Richardson) Fernald false toadflax ME (SC), NH (T), NY (E), WI (E)
LYDI3 Lycopodium digitatum Dill. ex A. Braun fan clubmoss NY (EV)
ADTE Adiantum tenerum Sw. fan maidenhair FL (E)
RAFA60 Ramalina farinacea (L.) Ach. farinose cartilage lichen OH (PRX)
SIFA2 Sisyrinchium farwellii E.P. Bicknell Farwell's blue-eyed grass MI (PREX)
MYFA2 Myriophyllum farwellii Morong Farwell's watermilfoil MA (E), MI (T), NH (T), NY (T), PA (E)
PAFAC Panicum fauriei Hitchc. var. carteri (Hosaka) Davidse Faurie's panicgrass E
SYPIL Synthyris pinnatifida S. Watson var. lanuginosa (Piper) Cronquist featherleaf kittentails WA (S)
MARAA Maianthemum racemosum (L.) Link ssp. amplexicaule (Nutt.) LaFrankie feathery false lily of the valley AZ (SR)
MARAR Maianthemum racemosum (L.) Link ssp. racemosum feathery false lily of the valley AZ (SR)
AMTH Amsonia tharpii Woodson feltleaf bluestar NM (E)
PAGL3 Parnassia glauca Raf. fen grass of Parnassus ME (SC), NH (T), NY (EV), PA (E), RI (H)
POLAF Poa laxa Haenke ssp. fernaldiana (Nannf.) Hyl. Fernald's bluegrass
POFE2 Poa fernaldiana Nannf. ME (E), NH (E), NY (E)
CAME12 Carex merritt-fernaldii Mack. Fernald's sedge NY (T), OH (E)
COAS Coptis aspleniifolia Salisb. fernleaf goldthread WA (S)
AUPE2 Aureolaria pedicularia (L.) Raf. fernleaf yellow false foxglove IA (E), ME (SC), MN (T)
AUPEA Aureolaria pedicularia (L.) Raf. var. ambigens (Fernald) Farw. fernleaf yellow false foxglove OH (E)
AUPEI Aureolaria pedicularia (L.) Raf. var. intercedens Pennell fernleaf yellow false foxglove NH (E)
AUPEP Aureolaria pedicularia (L.) Raf. var. pedicularia fernleaf yellow false foxglove OH (E)
CAFE3 Carex festucacea Schkuhr ex Willd. fescue sedge MN (T)
PIBR6 Pinckneya bracteata (W. Bartram) Raf. fevertree FL (T)
TRPE5 Triosteum perfoliatum L. feverwort MA (E), RI (SC)
RHRA2 Rhynchospora rariflora (Michx.) Elliot fewflower beaksedge AR (T), MD (E, X), NJ (E), TN (E)
CAPA34 Caesalpinia pauciflora (Griseb.) C. Wright ex Sauvalle fewflower holdback FL (E)
NALEP Navarretia leucocephala Benth. ssp. pauciflora (H. Mason) Day fewflower navarretia CA (T)
NAPA2 Navarretia pauciflora H. Mason E
SCPA5 Scleria pauciflora Muhl. ex Willd. fewflower nutrush MA (E), MI (E), OH (T), PA (T), RI (T)
CAPA19 Carex pauciflora Lightf. fewflower sedge CT (SC), MA (E), PA (E), WA (S)
ELQU2 Eleocharis quinqueflora (Hartmann) O. Schwarz fewflower spikerush ME (E), MA (E)
ELPA6 Eleocharis pauciflora (Lightf.) Link IL (E), NJ (E), OH (T), VT (T)
ELPAF Eleocharis pauciflora (Lightf.) Link var. fernaldii Svens. NH (E), PA (E)
DEPA7 Desmodium pauciflorum (Nutt.) DC. fewflower ticktrefoil MD (E), NJ (E), NY (E)
HEOC2 Helianthus occidentalis Riddell fewleaf sunflower MD (T)
ERTE12 Eriophorum tenellum Nutt. fewnerved cottongrass NJ (E), PA (E)
CAOL3 Carex oligosperma Michx. fewseed sedge CT (SC), IL (E), MA (E), NC (E), OH (T), PA (T)
CACO7 Carex communis L.H. Bailey fibrousroot sedge IL (T)
CEARV3 Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho var. velutinum (Raf.) Britton field chickweed
CEVE8 Cerastium velutinum Raf. TN (E)
CEARV4 Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho var. villosum (Muhl. ex Darl.) Hollick & Britton field chickweed
CEARV6 Cerastium arvense L. var. villosissimum Pennell PA (E)
OXCA4 Oxytropis campestris (L.) DC. field locoweed ME (T)
OXCAC Oxytropis campestris (L.) DC. var. chartacea (Fassett) Barneby field locoweed T WI (E)
OXCAC2 Oxytropis campestris (L.) DC. var. columbiana (H. St. John) Barneby field locoweed WA (T)
OXCAW Oxytropis campestris (L.) DC. var. wanapum E. Joyal field locoweed WA (E)
PALA10 Paspalum laeve Michx. field paspalum CT (E)
PALAC Paspalum laeve Michx. var. circulare (Nash) Stone NY (E)
PALAP Paspalum laeve Michx. var. pilosum Scribn. NY (E)
ARCA12 Artemisia campestris L. field sagewort OH (T)
ARCAB2 Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. field sagewort ME (PX), MA (E), NY (E)
ARCAW Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. var. wormskioldii (Besser ex Hook.) Cronquist field sagewort OR (E), WA (E)
ARCAC Artemisia campestris L. ssp. caudata (Michx.) H.M. Hall & Clem. field sagewort NH (T), PA (E), RI (SC)
ANFI4 Anomobryum filiforme (Dicks.) Solms filiform anomobryum moss OH (PRX)
ANTR2 Angelica triquinata Michx. filmy angelica KY (E), MD (E)
STFIA2 Stuckenia filiformis (Pers.) Börner ssp. alpina (Blytt) Haynes, D.H. Les & M. Kral fineleaf pondweed
POFIA Potamogeton filiformis Pers. var. alpinus (Blytt) Asch. & Graebn. NH (E), NY (E)
STFIA Stuckenia filiformis (Pers.) Böerner ssp. alpinus (Blytt) Haynes, D.H. Les & M. Kral, orth. var. ME (T)
STFIF Stuckenia filiformis (Pers.) Börner ssp. filiformis fineleaf pondweed
POFI2 Potamogeton filiformis Pers. OH (PRX), PA (X)
CYDI2 Cynosciadium digitatum DC. finger dogshade IL (E)
HUSE Huperzia selago (L.) Bernh. ex Schrank & Mart. fir clubmoss ME (T), MA (E), NY (E), PA (X)
HUSES Huperzia selago (L.) Bernh. ex Schrank & Mart. var. selago fir clubmoss
LYSE Lycopodium selago L. CT (SC)
SIVI4 Silene virginica L. fire pink FL (E), MI (T), WI (E)
CRCH Crataegus chrysocarpa Ashe fireberry hawthorn IN (E)
CHANA2 Chamerion angustifolium (L.) Holub ssp. angustifolium fireweed
EPAN2 Epilobium angustifolium L. IN (E), OH (E), TN (SC)
ERPI9 Erigeron piscaticus G.L. Nesom Fish Creek fleabane AZ (SR)
ASLEP3 Astragalus lentiginosus Douglas ex Hook. var. piscinensis Barneby Fish Slough milkvetch T
FIHY Fissidens hyalinus Wilson & Hook. fissidens moss OH (E)
ECREF2 Echinocereus reichenbachii (Terscheck ex Walp.) hort ex Haage ssp. fitchii (Britton & Rose) N.P. Taylor Fitch's hedgehog cactus
ECREA Echinocereus reichenbachii (Terscheck ex Walp.) hort ex Haage var. albertii L.D. Benson E TX (E)
CUPE3 Cuscuta pentagona Engelm. fiveangled dodder NH (E), OH (E)
PONIP Potentilla nivea L. var. pentaphylla Lehm. fiveleaf cinquefoil
POQU Potentilla quinquefolia (Rydb.) Rydb. WA (S)
RHCA4 Rhododendron calendulaceum (Michx.) Torr. flame azalea OH (E), PA (X)
MAFL4 Macranthera flammea (W. Bartram) Pennell flameflower FL (E)
CAPL18 Carex planispicata Naczi flat-spiked sedge
CAAMR Carex amphibola Steud. var. rigida (L.H. Bailey) Fernald NH (T)
ANCO Antennaria corymbosa E.E. Nelson flat-top pussytoes WA (S)
UTIN2 Utricularia intermedia Hayne flatleaf bladderwort IL (E), OH (T), PA (T), RI (SC), WA (S)
POZO Potamogeton zosteriformis Fernald flatstem pondweed MD (E), NH (T), NJ (E), PA (R)
ELCO2 Eleocharis compressa Sull. flatstem spikerush MD (E), MI (T), NJ (E), PA (E)
DACO Danthonia compressa Austin flattened oatgrass MI (E)
IOLI2 Ionactis linariifolius (L.) Greene flaxleaf whitetop aster
ASLI2 Aster linariifolius L. IA (T)
CRSU5 Crataegus succulenta Schrad. ex Link fleshy hawthorn IN (R), NJ (E)
CRBI7 Crataegus bicknellii Eggl. MA (E)
EPBO4 Epidendrum boricuarum Hágsater & Sánchez fleshy star orchid
EPDI Epidendrum difforme auct. non Jacq. FL (E)
STCR Stellaria crassifolia Ehrh. fleshy starwort MI (T)
SPFL Sparganium fluctuans (Engelm. ex Morong) B.L. Rob. floating bur-reed CT (E)
CANA Caltha natans Pall. ex Georgi floating marsh marigold MN (E), WI (E)
HYRA Hydrocotyle ranunculoides L. f. floating marshpennywort IL (E), NJ (E), NY (E)
PLGE Pleurothallis gelida Lindl. flor de llanten FL (E)
ILFL Illicium floridanum Ellis Florida anisetree GA (E)
NOAT Nolina atopocarpa Bartlett Florida beargrass FL (T)
UVFL Uvularia floridana Chapm. Florida bellwort FL (E)
PIPE Picramnia pentandra Sw. Florida bitterbush FL (E)
LIOH Liatris ohlingerae (S.F. Blake) B.L. Rob. Florida blazing star E FL (E)
SCFR Schaefferia frutescens Jacq. Florida boxwood FL (E)
ECFL4 Echinodorus floridanus Haynes & Burkhalter Florida burhead FL (E)
CLDE4 Clinopodium dentatum (Chapm.) Kuntze Florida calamint
CADE26 Calamintha dentata Chapm. FL (T)
PSSA Pseudophoenix sargentii H. Wendl. ex Sarg. Florida cherry palm FL (E)
TEBI Tetrazygia bicolor (Mill.) Cogn. Florida clover ash FL (T)
CYFL6 Cyperus floridanus Britton Florida flatsedge FL (E)
TRFL4 Tripsacum floridanum Porter ex Vasey Florida gamagrass FL (T)
CHFL8 Chrysopsis floridana Small Florida goldenaster E FL (E)
HAFL4 Hartwrightia floridana A. Gray ex S. Watson Florida hartwrightia FL (T), GA (T)
GRFL2 Gratiola floridana Nutt. Florida hedgehyssop TN (E)
DOVI Dodonaea viscosa (L.) Jacq. Florida hopbush
DOEL3 Dodonaea elaeagnoides J.H. Rudolph ex Ledeb. & Alderstam FL (E)
POBA5 Polygonella basiramia (Small) G.L. Nesom & V.M. Bates Florida jointweed E FL (E)
ZICE Ziziphus celata W.S. Judd & D.W. Hall Florida jujube E FL (E)
PIKE Pithecellobium keyense Britton ex Britton & Rose Florida Keys blackbead FL (T)
MELU3 Mesadenus lucayanus (Britton) Schltr. Florida Keys ladies'-tresses
SPPO3 Spiranthes polyantha auct. non Rchb. f. FL (E)
TRSA2 Tragia saxicola Small Florida Keys noseburn FL (T)
SCLI3 Scleria lithosperma (L.) Sw. Florida Keys nutrush FL (E)
KOVI2 Koanophyllon villosum (Sw.) R.M. King & H. Rob. Florida Keys thoroughwort
EUVI4 Eupatorium villosum Sw. FL (E)
CTSL Ctenitis sloanei (Poepp. ex Spreng.) Morton Florida lacefern FL (E)
BOGR5 Bonamia grandiflora (A. Gray) Hallier f. Florida lady's nightcap T FL (E)
PHLI13 Phyllanthus liebmannianus Müll. Arg. Florida leaf-flower FL (E)
LYFL4 Lythrum flagellare Shuttlw. ex Chapm. Florida loosestrife FL (E)
MAPH Maytenus phyllanthoides Benth. Florida mayten FL (T)
MAFL5 Matelea floridana (Vail) Woodson Florida milkvine FL (E)
PYFL2 Pycnanthemum floridanum E. Grant & Epling Florida mountainmint FL (T)
WOGL2 Wolffiella gladiata (Hegelm.) Hegelm. Florida mudmidget OH (T), PA (R)
WOFL Wolffiella floridana (Donn. Sm.) C.H. Thomp. IN (X), MD (E, X), NJ (E)
TOTA Torreya taxifolia Arn. Florida nutmeg E FL (E), GA (E)
CTFL Ctenium floridanum (Hitchc.) Hitchc. Florida orangegrass FL (E)
ONFL Oncidium floridanum Ames Florida orchid FL (E)
PAFL4 Paspalum floridanum Michx. Florida paspalum
PAFLG Paspalum floridanum Michx. var. glabratum Engelm. ex Vasey PA (X)
SPLO3 Spigelia loganioides (Torr. & A. Gray ex Endl. & Fenzl) A. DC. Florida pinkroot FL (E)
POFL5 Potamogeton floridanus Small Florida pondweed FL (E)
CACU Calamovilfa curtissii (Vasey) Scribn. Florida sandreed FL (T)
COAR Coccothrinax argentata (Jacq.) L.H. Bailey Florida silver palm FL (T)
SCFL4 Scutellaria floridana Chapm. Florida skullcap T FL (E)
SPMAF Sphagnum macrophyllum Brid. var. floridanum Austin Florida sphagnum NJ (E)
CAFL10 Catopsis floribunda L.B. Sm. Florida strap airplant FL (E)
CANU13 Catopsis nutans auct. non (Sw.) Griseb. FL (E)
THRA2 Thrinax radiata Lodd. ex Schult. & Schult. f. Florida thatch palm FL (E)
CUGL Cupania glabra Sw. Florida toadwood FL (E)
BACA4 Baptisia calycosa Canby Florida wild indigo FL (E)
BACAV Baptisia calycosa Canby var. villosa Canby Florida wild indigo
BAHI4 Baptisia hirsuta Small FL (T)
SAFL Salix floridana Chapm. Florida willow FL (E), GA (E)
LIFL Linum floridanum (Planch.) Trel. Florida yellow flax MD (E, X)
TAFL Taxus floridana Nutt. ex Chapm. Florida yew FL (E)
COFL2 Cornus florida L. flowering dogwood ME (E), NY (EV), VT (T)
PYBA Pyxidanthera barbulata Michx. flowering pixiemoss NY (E)
TRBR5 Trichostema brachiatum L. fluxweed MA (E), MI (T)
ISBR3 Isanthus brachiatus (L.) Britton, Sterns & Poggenb. CT (SC), NJ (E)
AMMU Amianthium muscitoxicum (Walter) A. Gray flypoison KY (T)
BRCO8 Brickellia cordifolia Elliot Flyr's nemesis FL (E)
CHFO3 Chenopodium foggii Wahl Fogg's goosefoot MA (E), PA (E)
LELU Lesquerella ludoviciana (Nutt.) S. Watson foothill bladderpod IL (E), MN (E), WI (T)
ZIPA2 Zigadenus paniculatus (Nutt.) S. Watson foothill deathcamas AZ (SR)
DEHEC Delphinium hesperium A. Gray ssp. cuyamacae (Abrams) F.H. Lewis & Epling foothill larkspur CA (R)
SAAR9 Sanicula arctopoides Hook. & Arn. footsteps of spring WA (S)
ALAM5 Alsophila amintae Conant forest alsophila
CYDR2 Cyathea dryopteroides Maxon E PR (E)
CYGI3 Cyrtandra giffardii Rock forest cyrtandra E
GABR Gardenia brighamii Gardenia brighamii forest gardenia E
EUFU3 Eurybia furcata (Burgess) G.L. Nesom forked aster
ASFU Aster furcatus Burgess AR (T), IL (T), IN (R), IA (T), MI (T), WI (T)
TRDI2 Trichostema dichotomum L. forked bluecurls IN (R), MI (T)
LEOX Lepidium oxycarpum Torr. & A. Gray forked pepperweed WA (S)
JUDI Juncus dichotomus Elliot forked rush PA (E)
JUPL2 Juncus platyphyllus (Wiegand) Fernald OH (E)
ARBA2 Aristida basiramea Engelm. ex Vasey forked threeawn ME (SC)
CADI28 Cardamine dissecta (Leavenworth) Al-Shehbaz forkleaf toothwort
DEMU3 Dentaria multifida Muhl. ex Elliot IN (E)
ERFO Eragrostis fosbergii Whitney Fosberg's lovegrass E
CIFOF Cirsium fontinale (Greene) Jeps. var. fontinale fountain thistle E CA (E)
MEQU3 Melicope quadrangularis (H. St. John & Hume) T.G. Hartley & B.C. Stone fourangle melicope E
LYQU Lysimachia quadriflora Sims fourflower yellow loosestrife NY (E), TN (SC)
ASQU Asclepias quadrifolia Jacq. fourleaf milkweed NH (T), RI (T)
PHTE Phacelia tetramera J.T. Howell fourpart phacelia WA (S)
ASTE11 Asimina tetramera Small fourpetal pawpaw E FL (E)
POPA2 Poa palustris L. fowl bluegrass TN (E)
VILA8 Vitis labrusca L. fox grape KY (SC)
LYAL5 Lycopodiella alopecuroides (L.) Cranfill foxtail clubmoss MA (E), NY (EV), PA (E), RI (E), TN (T)
LYAL2 Lycopodium alopecuroides L. CT (SC)
CAAL8 Carex alopecoidea Tuck. foxtail sedge CT (SC), IN (E), ME (PX), MA (T), NJ (E), OH (E), TN (PX, E)
CRST2 Cryptogramma stelleri (S.G. Gmel.) Prantl fragile rockbrake CT (E), ME (T), MA (E), NH (T), NJ (E), NY (EV), PA (E), WA (S)
TOFR3 Tortula fragilis Taylor fragile tortula moss TN (E)
HAER4 Harrisia eriophora (N.E. Pfeiffer) Britton fragrant applecactus FL (E)
BUFA Bursera fagaroides (Kunth) Engl. fragrant bursera AZ (SR)
CYOD Cyperus odoratus L. fragrant flatsedge RI (SC)
CYEN Cyperus engelmannii Steud. MA (T), PA (R), TN (SC)
ADME Adiantum melanoleucum Willd. fragrant maidenhair FL (E)
RHAR4 Rhus aromatica Aiton fragrant sumac CT (SC)
RHARA Rhus aromatica Aiton var. arenaria (Greene) Fernald fragrant sumac IN (T), OH (PRX)
DRFR Dryopteris fragrans (L.) Schott fragrant woodfern ME (SC), NH (T), NY (E)
CAFR3 Carex frankii Kunth Frank's sedge NY (E)
PHFR Phacelia franklinii (R. Br.) A. Gray Franklin's phacelia MI (T)
ABFR Abies fraseri (Pursh) Poir. Fraser fir TN (T)
CYFR4 Cymophyllus fraserianus (Ker Gawl.) Kartesz & Gandhi Fraser's cymophyllus GA (T), KY (E), MD (E), TN (SC)
CYFR Cymophyllus fraseri (Andrews) Mack. ex Britton PA (E)
LYFR2 Lysimachia fraseri Duby Fraser's yellow loosestrife GA (R), IL (E), KY (E), NC (E), TN (E)
ERRI Eriogonum ripleyi J.T. Howell Fraziers Well buckwheat AZ (SR)
ERMO9 Eriogonum mortonianum Reveal Fredonia buckwheat AZ (SR)
DOFR2 Dodecatheon frenchii (Vasey) Rydb. French's shootingstar AR (T), IN (R), KY (SC)
ORON Orbexilum onobrychis (Nutt.) Rydb. French-grass
PSON Psoralea onobrychis Nutt. IA (E)
BOGA2 Botrychium gallicomontanum Farrar & Johnson-Groh Frenchman's Bluff grapefern MN (E)
POFR3 Potamogeton friesii Rupr. Fries' pondweed CT (SC), IN (E), ME (E), MA (E), OH (E), PA (E)
POCI Polygonum cilinode Michx. fringed black bindweed IN (E), OH (E), TN (T)
BRCI2 Bromus ciliatus L. fringed brome MD (E, X)
PAFIH Parnassia fimbriata K.D. Koenig var. hoodiana C.L. Hitchc. fringed grass of Parnassus WA (S)
SCCIC Scleria ciliata Michx. var. ciliata fringed nutrush KY (E)
CACRB Carex crinita Lam. var. brevicrinis Fernald fringed sedge PA (E)
EPCI Epilobium ciliatum Raf. fringed willowherb IN (E), MD (E), NH (T), TN (SC)
EPCIG Epilobium ciliatum Raf. ssp. glandulosum (Lehm.) Hoch & P.H. Raven fringed willowherb NY (E)
XYFI Xyris fimbriata Elliot fringed yelloweyed grass MD (E), NJ (E), TN (E)
LOFE Lobelia fenestralis Cav. fringeleaf lobelia AZ (SR)
COIN4 Coreopsis integrifolia Poir. fringeleaf tickseed FL (E)
RUHU Ruellia humilis Nutt. fringeleaf wild petunia MD (E), MI (T), NC (T), PA (E), WI (E)
VIVU Vitis vulpina L. frost grape MI (T), NY (E)
CAPR14 Castilleja pruinosa Fernald frosted Indian paintbrush
CAGL17 Castilleja gleasoni Elmer CA (R)
PEFU Pedicularis furbishiae S. Watson Furbish's lousewort E ME (E)
CAHI6 Carex hirsutella Mack. fuzzy wuzzy sedge CT (SC), NH (E)
PHWA2 Phyllostegia wawrana Sherff fuzzystem phyllostegia E
TIPR Tillandsia pruinosa Sw. fuzzywuzzy airplant FL (E)
PRTR Prenanthes trifoliolata (Cass.) Fernald gall of the earth OH (E)
NAGA Nasturtium gambelii (S. Watson) O.E. Schulz Gambel's yellowcress
ROGA2 Rorippa gambelii (S. Watson) Rollins & Al-Shehbaz E CA (T)
PAGA5 Packera ganderi (T.M. Barkley & R.M. Beauch.) W.A. Weber & Á. Löve Gander's ragwort
SEGA Senecio ganderi T.M. Barkley & R.M. Beauch. CA (R)
CHGA3 Chamaesyce garberi (Engelm. ex Chapm.) Small Garber's sandmat T FL (E)
GAHE4 Garberia heterophylla (W. Bartram) Merr. & F. Harper garberia FL (T)
TRGA4 Triglochin gaspensis Lieth & D. Löve Gaspé Peninsula arrowgrass
TRGA3 Triglochin gaspense Lieth & D. Löve, orth. var. ME (PX)
AMSAG Amelanchier sanguinea (Pursh) DC. var. gaspensis Wiegand Gaspé serviceberry ME (SC)
SOGA Solidago gattingeri Chapm. ex A. Gray Gattinger's goldenrod TN (E)
LOAPG Lobelia appendiculata A. DC. var. gattingeri (A. Gray) McVaugh Gattinger's lobelia KY (E)
PAGA Panicum gattingeri Nash Gattinger's panicgrass
PAPHG Panicum philadelphicum Bernh. ex Trin. ssp. gattingeri (Nash) Freckmann & Lelong MA (SC)
DEINV3 Deinandra increscens (H.M. Hall ex D.D. Keck) B.G. Baldw. ssp. villosa (Tanowitz) B.G. Baldw. Gaviota tarplant E
HEINV Hemizonia increscens (H.M. Hall ex D.D. Keck) Tanowitz ssp. villosa Tanowitz CA (E)
POPA5 Polygala paucifolia Willd. gaywings IN (E), KY (E), OH (E)
FRGE Fritillaria gentneri Gilkey Gentner's fritillary E OR (E)
DATE4 Dalea tentaculoides Gentry Gentry's indigobush AZ (HS)
SYGE Symphyotrichum georgianum (Alexander) G.L. Nesom Georgia aster
ASGE2 Aster georgianus Alexander NC (T)
SITH2 Sideroxylon thornei (Cronquist) T.D. Penn. Georgia bully FL (E), GA (E)
SCGE2 Scirpus georgianus Harper Georgia bulrush CT (SC), NY (E)
CLGE Clinopodium georgianum Harper Georgia calamint
CAGE7 Calamintha georgiana (Harper) Shinners FL (E)
AMGEC Amorpha georgiana Wilbur var. confusa Wilbur Georgia false indigo NC (T)
AMGEG Amorpha georgiana Wilbur var. georgiana Georgia false indigo NC (E)
ARGE Arabis georgiana Harper Georgia rockcress GA (T)
ELRA2 Elliottia racemosa Muhl. ex Elliot georgiaplume GA (T)
ASGE Astragalus geyeri A. Gray Geyer's milkvetch WA (S)
ASGET Astragalus geyeri A. Gray var. triquetrus (A. Gray) M.E. Jones Geyer's milkvetch NV (FP)
ALGEG Allium geyeri S. Watson var. geyeri Geyer's onion AZ (SR)
CAGE2 Carex geyeri Boott Geyer's sedge PA (E)
DIACT2 Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. thermale (Bol.) Freckmann Geysers panicgrass
DILAT Dichanthelium lanuginosum (Elliot) Gould var. thermale (Bol.) Spellenb. CA (E)
LIGH Liatris gholsonii L.C. Anderson Gholson's blazing star FL (E)
TIFA Tillandsia fasciculata Sw. giant airplant FL (E)
SAMO Sagittaria montevidensis Cham. & Schltdl. giant arrowhead MI (T)
CAGI6 Caulophyllum giganteum (Farw.) Loconte & Blackwell giant blue cohosh TN (T)
WOFI Woodwardia fimbriata Sm. giant chainfern WA (S)
CHCH7 Chrysolepis chrysophylla (Douglas ex Hook.) Hjelmqvist giant chinquapin WA (S)
OXGR5 Oxypolis greenmanii Mathias & Constance giant cowbane FL (E)
ZIMI Zizaniopsis miliacea (Michx.) Döll & Asch. giant cutgrass KY (T), MD (E)
EQTE Equisetum telmateia Ehrh. giant horsetail MI (PREX)
VEGI Vernonia gigantea (Walter) Trel. giant ironweed NY (E)
CAMO32 Canadanthus modestus (Lindl.) G.L. Nesom giant mountain aster
ASMO3 Aster modestus Lindl. MI (T)
PTEC2 Pteroglossaspis ecristata (Fernald) Rolfe giant orchid NC (E)
EUEC Eulophia ecristata (Fernald) Ames FL (T)
CAMIM5 Castilleja miniata Douglas ex Hook. ssp. miniata giant red Indian paintbrush
CAUL2 Castilleja uliginosa Eastw. CA (E)
CAGI4 Carex gigantea Rudge giant sedge IL (E), IN (E), KY (T)
HEGI Helianthus giganteus L. giant sunflower IL (E)
NEBI Nephrolepis biserrata (Sw.) Schott giant swordfern FL (T)
SPLO2 Spiranthes longilabris Lindl. giantspiral lady's tresses FL (T), NC (T)
CYMAG Cyanea macrostegia Hillebr. ssp. gibsonii (Hillebr.) Lammers Gibson's cyanea E
DUCO Dudleya collomiae Rose ex Morton Gila County liveforever
DUSAC Dudleya saxosa (M.E. Jones) Britton & Rose ssp. collomiae (Rose ex Morton) Moran AZ (SR)
CYAS Cyanea asarifolia H. St. John gingerleaf cyanea E
DIPY Diplazium pycnocarpon (Spreng.) Broun glade fern CT (E), MD (T), MN (T), NH (E), NY (EV)
ATPY Athyrium pycnocarpon (Spreng.) Tidestr. NJ (E)
LOGL Lobelia glandulosa Walter glade lobelia MD (E, X)
VIEG Viola egglestonii Brainerd glade violet IN (E)
VISEE Viola septemloba Leconte ssp. egglestonii (Brainerd) McKinney KY (SC)
NADI2 Napaea dioica L. glademallow IN (R), MN (T)
ASXI Astragalus xiphoides (Barneby) Barneby gladiator milkvetch AZ (SR)
ALGL Allium glandulosum Link & Otto gland onion
ALRH Allium rhizomatum Woot. & Standl. AZ (SR)
HENI2 Hexalectris nitida L.O. Williams Glass Mountain crested coralroot NM (E)
POGL Poa glauca Vahl glaucous bluegrass ME (SC), NH (T), NY (E)
RHGL2 Rhynchospora globularis (Chapm.) Small globe beaksedge KY (SC), MD (E), MI (E), NJ (E), OH (E)
RHRE8 Rhynchospora recognita (Gale) Kral globe beaksedge
RHGLR Rhynchospora globularis (Chapm.) Small var. recognita Gale IN (E)
LEGL2 Lesquerella globosa (Desv.) S. Watson globe bladderpod IN (E), KY (T), TN (E)
CYEC2 Cyperus echinatus (L.) Alph. Wood globe flatsedge NY (E)
LUSP Ludwigia sphaerocarpa Elliot globefruit primrose-willow CT (E), IN (E), MA (E), MI (T), NY (T), PA (X), RI (E), TN (T)
CAAG2 Carex aggregata Mack. glomerate sedge NY (E)
BRMI11 Bryum miniatum Lesq. glossy red bryum moss KY (E)
RAGM Ranunculus gmelinii DC. Gmelin's buttercup ME (T)
RAGMH Ranunculus gmelinii DC. var. hookeri (D. Don) L.D. Benson WI (E)
PASE6 Passiflora sexflora Juss. goatsfoot FL (E)
LIPR3 Liatris provincialis Godfrey Godfrey's blazing star FL (E)
PHGO2 Physostegia godfreyi Cantino Godfrey's false dragonhead FL (T)
CHGO2 Chrysopsis godfreyi Semple Godfrey's goldenaster FL (E)
HYGO2 Hymenocallis godfreyi G. Lom. Sm. & M. Darst Godfrey's spiderlily FL (E)
MIGO Minuartia godfreyi (Shinners) McNeill Godfrey's stitchwort FL (E), NC (E)
ARGO2 Arenaria godfreyi Shinners TN (E)
FOGO Forestiera godfreyi L.C. Anderson Godfrey's swampprivet FL (E)
ALAU Aletris aurea Walter golden colicroot MD (E, X)
AQCH Aquilegia chrysantha A. Gray golden columbine AZ (SR)
RIAUV Ribes aureum Pursh var. villosum DC. golden currant
RIOD Ribes odoratum H. Wendl. TN (T)
RUMA4 Rumex maritimus L. golden dock
RUMAF2 Rumex maritimus L. var. fueginus (Phil.) Dusén CT (SC), NY (E)
DRAU Draba aurea Vahl ex Hornem. golden draba WA (S)
GRAU Gratiola aurea Pursh golden hedgehyssop MI (T), PA (E)
CALE27 Castilleja levisecta Greenm. golden Indian paintbrush T OR (E), WA (E)
ACAU3 Acrostichum aureum L. golden leatherfern FL (T)
CAAU8 Calochortus aureus S. Watson golden mariposa lily AZ (SR)
OPAU2 Opuntia aurea E.M. Baxter golden pricklypear
OPBAA Opuntia basilaris Engelm. & Bigelow var. aurea (E.M. Baxter) W.T. Marshall AZ (SR)
CAAU3 Carex aurea Nutt. golden sedge IL (E), IN (R), NH (T), PA (E)
ZIAU Zizia aurea (L.) W.D.J. Koch golden zizia RI (SC)
ORAQ Orontium aquaticum L. goldenclub CT (SC), KY (T), MA (E), NY (T), PA (R), RI (E)
LOAU Lophiola aurea Ker Gawl. goldencrest NC (E)
AGCH2 Agave chrysantha Peebles goldenflower century plant AZ (SR)
HYCA Hydrastis canadensis L. goldenseal CT (E), GA (E), MD (T), MA (E), MI (T), MN (E), NJ (E), NY (T), NC (SC, E), PA (V), TN (SC, CE), VT (E)
DRGO3 Dryopteris goldieana (Hook. ex Goldie) A. Gray Goldie's woodfern
DRGO Dryopteris goldiana (Hook. ex Goldie) A. Gray Goldie's woodfern CT (SC), ME (SC), NH (T), NY (EV)
ALGO Allium gooddingii Ownbey Goodding's onion AZ (HS), NM (E)
PLMAJ Plantago maritima L. var. juncoides (Lam.) A. Gray goose tongue
PLMAJ2 Plantago maritima L. ssp. juncoides (Lam.) Hultén NY (T)
HEGRT Heuchera grossulariifolia Rydb. var. tenuifolia (Wheelock) C.L. Hitchc. gooseberryleaf alumroot WA (S)
VACH Valerianella chenopodiifolia (Pursh) DC. goosefoot cornsalad IL (E), IN (E), MD (E), MI (T), NY (E)
EROR2 Erigeron oreganus A. Gray gorge fleabane WA (T)
HEGO3 Hesperocyparis goveniana (Gordon) Bartel Gowen cypress
CUGOG Cupressus goveniana Gord. ssp. goveniana Gowen cypress T
MAGR9 Mammillaria grahamii Engelm. Graham's nipple cactus
MAGRG4 Mammillaria grahamii Engelm. var. grahamii AZ (SR)
MAGRO Mammillaria grahamii Engelm. var. oliviae (Orcutt) L.D. Benson AZ (SR)
MAMI2 Mammillaria microcarpa Engelm. AZ (SR)
ALCO3 Allium constrictum (Ownbey & Mingrone) P. Peterson, Annable & Rieseberg Grand Coulee onion WA (S)
CRGR13 Crataegus grandis Ashe grand hawthorn IN (E)
AMRO3 Ammannia robusta Heer & Regel grand redstem WA (S)
SEPU6 Sedum pusillum Michx. granite stonecrop GA (T), NC (E)
LORE5 Lonicera reticulata Raf. grape honeysuckle KY (E)
LOPR2 Lonicera prolifera (G. Kirchn.) J.R. Booth ex Rehder TN (PX, E)
HEDU2 Heteranthera dubia (Jacq.) MacMill. grassleaf mudplantain KY (SC), NH (E)
ZODU Zosterella dubia (Jacq.) Small ME (T)
SAGR Sagittaria graminea Michx. grassy arrowhead KY (T), OH (E), RI (SC), TN (T)
CAAN10 Carex anthoxanthea J. Presl & C. Presl grassyslope arctic sedge WA (S)
PRMAG Prunus maritima Marshall var. gravesii (Small) G.J. Anderson Graves' plum CT (E)
BEPO Betula populifolia Marshall gray birch IL (E), IN (X)
CRLE6 Cryptantha leucophaea (Douglas ex Lehm.) Payson gray cryptantha WA (S)
HACI2 Hackelia cinerea (Piper) I.M. Johnst. gray stickseed WA (S)
CYGR2 Cyperus grayi Torr. Gray's flatsedge NH (E)
FRGR4 Fritillaria grayana Rchb. f. & Baker Gray's fritillary
FRRO Fritillaria roderickii Knight CA (E)
LIGR2 Lilium grayi S. Watson Gray's lily NC (SC, T), TN (E)
CAGR5 Carex grayi Carey Gray's sedge MA (T)
VICIB Vitis cinerea (Engelm.) Engelm. ex Millard var. baileyana (Munson) Comeaux graybark grape PA (E)
SAGL Salix glauca L. grayleaf willow WA (S)
PILO Pinus longaeva D.K. Bailey Great Basin bristlecone pine NV (CY)
SCPU6 Sclerocactus pubispinus (Engelm.) L.D. Benson Great Basin fishhook cactus AZ (SR), NV (CY)
LOSI Lobelia siphilitica L. great blue lobelia ME (PX), MA (E), NY (EV)
ARRE6 Arnoglossum reniforme (Hook.) H. Rob. great Indian plantain
CAMU23 Cacalia muehlenbergii (Sch. Bip.) Fernald MD (E, X)
PRPUP Prunus pumila L. var. pumila Great Lakes sandcherry NY (E), OH (PRX)
ELLAP Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. psammophilus (J.M. Gillett & H. Senn) Á. Löve Great Lakes wheatgrass WI (T)
RHMA4 Rhododendron maximum L. great laurel ME (T), MA (T), NY (EV), OH (T), VT (T)
CYLUL Cyperus lupulinus (Spreng.) Marcks ssp. lupulinus Great Plains flatsedge NY (T)
SPMA5 Spiranthes magnicamporum Sheviak Great Plains lady's tresses GA (E), IN (E), KY (T), NM (E), PA (X)
PLPR4 Platanthera praeclara Sheviak & Bowles Great Plains white fringed orchid T IA (T), MN (E), MO (E), NE (T)
GLNU Glyceria nubigena W.A. Anderson Great Smoky Mountain mannagrass NC (T), TN (T)
CAPR10 Carex proposita Mack. Great Smoky Mountain sedge WA (S)
HYAS80 Hypericum ascyron L. great St. Johnswort ME (PX), MA (E), VT (T)
HYPY Hypericum pyramidatum Aiton CT (T), IN (E), MD (E, X), NH (T)
CAIN12 Carex intumescens Rudge greater bladder sedge IL (T)
JUSU2 Juncus subtilis E. Mey. greater creeping rush ME (T)
RAFL2 Ranunculus flammula L. greater creeping spearwort PA (X)
RAFLF Ranunculus flammula L. var. filiformis (Michx.) Hook. greater creeping spearwort CT (SC)
RARE80 Ranunculus reptans L. NJ (E)
GECR2 Gentianopsis crinita (Froel.) Ma greater fringed gentian GA (T), MD (E), NY (EV), NC (SC, E), RI (T)
GECR3 Gentiana crinita Froel. NH (T)
TRWA Triadenum walteri (J.G. Gmel.) Gleason greater marsh St. Johnswort NJ (E), OH (E)
PLGR2 Platanthera grandiflora (Bigelow) Lindl. greater purple fringed orchid MD (T), NY (EV), OH (PRX), TN (E)
PLMA9 Platanthera macrophylla (Goldie) P.M. Brown greater roundleaved orchid
PLORM Platanthera orbiculata (Pursh) Lindl. var. macrophylla (Goldie) Luer RI (T)
CYPAM3 Cypripedium parviflorum Salisb. var. makasin (Farw.) Sheviak greater yellow lady's slipper MA (E), NY (EV)
CYPAP3 Cypripedium parviflorum Salisb. var. pubescens (Willd.) Knight greater yellow lady's slipper NY (EV)
CYCAP2 Cypripedium calceolus L. var. pubescens (Willd.) Correll AZ (HS), GA (U), NM (E), RI (E)
CYPU10 Cypripedium pubescens Willd. NH (T), PA (V)
POCO27 Polystachya concreta (Jacq.) Garay & H.R. Sweet greater yellowspike orchid FL (E)
GITEA2 Gilia tenuiflora Benth. ssp. arenaria (Benth.) A.D. Grant & V.E. Grant greater yellowthroat gilia E CA (T)
PORE2 Polemonium reptans L. Greek valerian MI (T), NJ (E)
MAUN Malaxis unifolia Michx. green adder's-mouth orchid CT (E), FL (E), IN (E), NH (T), NY (EV), RI (E)
CHVI5 Chrysogonum virginianum L. green and gold KY (E), OH (T), PA (E), TN (T)
ASVI2 Asclepias viridis Walter green antelopehorn IN (E)
PEVI Peltandra virginica (L.) Schott green arrow arum IA (E)
ASVI Asclepias viridiflora Raf. green comet milkweed CT (SC), FL (E), NY (T)
ZIVI Zigadenus virescens (Kunth) J.F. Macbr. green deathcamas AZ (SR)
ARDR3 Arisaema dracontium (L.) Schott green dragon MA (T), NH (E), NY (EV), VT (T)
EPMAM Epidendrum magnoliae Muhl. var. magnoliae green fly orchid
EPCO4 Epidendrum conopseum W.T. Aiton FL (CE), GA (U)
PLLA2 Platanthera lacera (Michx.) G. Don green fringed orchid NY (EV)
CRVI2 Crataegus viridis L. green hawthorn IN (T)
ASHI Asclepias hirtella (Pennell) Woodson green milkweed MI (T), MN (T), TN (SC)
ADVI3 Adiantum viridimontanum Paris Green Mountain maidenhair VT (T)
SAOR3 Sarracenia oreophila (Kearney) Wherry green pitcherplant E GA (E), NC (SC, E), TN (PX, E)
ARMI5 Arabis missouriensis Greene green rockcress KY (E), ME (T), MD (E), MA (T), NH (T), NY (T), PA (E), RI (SC)
ARMID Arabis missouriensis Greene var. deamii (M. Hopkins) M. Hopkins IN (E)
JUGR Juncus greenei Oakes & Tuck. Greene's rush OH (E), PA (X), VT (E)
ABSA2 Abutilon sandwicense (O. Deg.) Christoph. greenflower Indian mallow E
MABA9 Mammillaria barbata Engelm. greenflower nipple cactus
MAVI6 Mammillaria viridiflora (Britton & Rose) Boed. AZ (SR)
PYCH Pyrola chlorantha Sw. greenflowered wintergreen NJ (E), OH (E), RI (SC)
PYVI3 Pyrola virens Schreb. IN (X), MD (E, X)
COAR3 Colubrina arborescens (Mill.) Sarg. greenheart FL (E)
MIGR7 Minuartia groenlandica (Retz.) Ostenf. Greenland stitchwort ME (SC)
ARGR9 Arenaria groenlandica (Retz.) Spreng. TN (E)
CYVI7 Cyrtandra viridiflora H. St. John & Storey greenleaf cyrtandra E
LOGR2 Lomatium greenmanii Mathias Greenman's biscuitroot OR (T)
CAAL5 Carex albolutescens Schwein. greenwhite sedge MI (T), OH (T)
THPA5 Thelypteris patens (Sw.) Small ex R.P. St. John gridscale maiden fern FL (E)
IVRHR Ivesia rhypara Ertter & Reveal var. rhypara grimy mousetail OR (E)
EVGR Evolvulus grisebachii Peter Grisebach's dwarf morning-glory FL (E)
OPPOE Opuntia polyacantha Haw. var. erinacea (Engelm. & J.M. Bigelow ex Engelm.) Parfitt grizzlybear pricklypear
OPERE Opuntia erinacea Engelm. & Bigelow ex Engelm. var. erinacea AZ (SR), NV (CY)
OPPOH Opuntia polyacantha Haw. var. hystricina (Engelm. & J.M. Bigelow) Parfitt grizzlybear pricklypear
OPERH Opuntia erinacea Engelm. & Bigelow ex Engelm. var. hystricina (Engelm. & Bigelow) L.D. Benson AZ (SR)
LISU4 Linum sulcatum Riddell grooved flax CT (SC), IN (R), MD (E), NJ (E), NY (T), PA (E), RI (H)
ARPL4 Arnoglossum plantagineum Raf. groovestem Indian plantain MN (T), TN (SC)
CATU10 Cacalia tuberosa Nutt. WI (T)
LYCO3 Lycopodium complanatum L. groundcedar NY (E)
ASCR2 Astragalus crassicarpus Nutt. groundplum milkvetch WI (E)
ASCRT Astragalus crassicarpus Nutt. var. trichocalyx (Nutt.) Barneby groundplum milkvetch IL (E)
POAL3 Poa alsodes A. Gray grove bluegrass IL (E), IN (R)
NAGUO2 Najas guadalupensis (Spreng.) Magnus ssp. olivacea (Rosend. & Butters) Haynes & C.B. Hellquist Guadalupe waternymph
NAGUO Najas guadalupensis (Spreng.) Magnus var. olivacea (Rosend. & Butters) Haynes NY (E)
MEPE3 Melothria pendula L. Guadeloupe cucumber IL (T), IN (X), MD (E)
ABGU Abies guatemalensis Rehder Guatemalan fir T
DRLA3 Drypetes lateriflora (Sw.) Krug & Urb. guiana plum FL (T)
LUWE Lupinus westianus Small Gulf Coast lupine FL (T)
LUWEA Lupinus westianus Small var. aridorum (McFarlin ex Beckner) Isely Gulf Coast lupine
LUAR11 Lupinus aridorum McFarlin ex Beckner E FL (E)
ERKO Eriocaulon koernickianum van Heurck & Müll. Arg. gulf pipewort AR (E)
SCPL Scaevola plumieri (L.) Vahl gullfeed FL (T)
SILAL3 Sideroxylon lanuginosum Michx. ssp. lanuginosum gum bully
BULA Bumelia lanuginosa (Michx.) Pers. IL (E)
CAGU Calochortus gunnisonii S. Watson Gunnison's mariposa lily AZ (SR)
SYHI Synandra hispidula (Michx.) Britton Guyandotte beauty IL (E)
GYLI Gymnoderma lineare (A. Evans) Yoshim. & Sharp gymnoderma lichen E GA (E), NC (T)
PEAD3 Pelexia adnata (Sw.) Spreng. hachuela
SPAD Spiranthes adnata (Sw.) Benth. ex Fawc. FL (E)
CYDU5 Cyanea duvalliorum Lammers & H. Oppenh. haha E
CYMA5 Cyanea magnicalyx Lammers haha E
CYMA23 Cyanea maritae Lammers & H. Oppenh. haha E
CACA12 Carex capillaris L. hair-like sedge ME (T), NH (T), NY (E), VT (T), WA (S)
MUCA2 Muhlenbergia capillaris (Lam.) Trin. hairawn muhly CT (E), IN (E), MD (E), NJ (E), OH (PRX), PA (X)
OPPOP Opuntia polyacantha Haw. var. polyacantha hairspine pricklypear NV (CY)
OPERU Opuntia erinacea Engelm. & Bigelow ex Engelm. var. ursina (F.A.C. Weber) Parish AZ (SR)
OPERU2 Opuntia erinacea Engelm. & Bigelow ex Engelm. var. utahensis (Engelm.) L.D. Benson AZ (SR), NV (CY)
OPPOJ Opuntia polyacantha Haw. var. juniperina (Britton & Rose) L.D. Benson AZ (SR)
OPPOR Opuntia polyacantha Haw. var. rufispina (Engelm. & Bigelow ex Engelm.) L.D. Benson AZ (SR), NV (CY)
OPPOT Opuntia polyacantha Haw. var. trichophora (Engelm. & Bigelow) J.M. Coult. AZ (SR)
HEVI2 Heuchera villosa Michx. hairy alumroot MD (E, X), OH (T)
ANVE Angelica venenosa (Greenway) Fernald hairy angelica CT (SC)
PEHI Penstemon hirsutus (L.) Willd. hairy beardtongue MA (E), RI (SC)
GAPI2 Galium pilosum Aiton hairy bedstraw NH (E)
HEVIV Heterotheca villosa (Pursh) Shinners var. villosa hairy false goldenaster
CHVI10 Chrysopsis villosa (Pursh) Nutt. ex DC. IN (T)
FIPU Fimbristylis puberula (Michx.) Vahl hairy fimbry IN (E), KY (T), MI (PREX), PA (X), TN (T), WI (E)
FIPUI Fimbristylis puberula (Michx.) Vahl var. interior (Britton) Kral hairy fimbry MN (E)
PAFA3 Paronychia fastigiata (Raf.) Fernald hairy forked nailwort CT (SC), MN (E)
PAFAN Paronychia fastigiata (Raf.) Fernald var. nuttallii (Small) Fernald hairy forked nailwort PA (E)
MIHI Mirabilis hirsuta (Pursh) MacMill. hairy four o'clock IL (E)
SOHI Solidago hispida Muhl. ex Willd. hairy goldenrod MD (E, X)
BOHI2 Bouteloua hirsuta Lag. hairy grama AR (E)
HILO2 Hieracium longipilum Torr. hairy hawkweed KY (T), OH (PRX), TN (SC)
STPIP5 Stachys pilosa Nutt. var. pilosa hairy hedgenettle
STPAH Stachys palustris L. var. homotricha Fernald NJ (E)
LOHI Lonicera hirsuta Eaton hairy honeysuckle MA (E), PA (E)
SMUV Smallanthus uvedalius (L.) Mack. ex Small hairy leafcup
POUV2 Polymnia uvedalia (L.) L. MI (T), NJ (E), NY (E)
LEHI2 Lespedeza hirta (L.) Hornem. hairy lespedeza ME (PX), VT (T)
LAHI Lactuca hirsuta Muhl. ex Nutt. hairy lettuce IL (T), MD (E, X), NY (E), OH (E), VT (T)
CHLA2 Cheilanthes lanosa (Michx.) D.C. Eaton hairy lipfern CT (E), IN (R), MN (E), NY (E)
ORPI Orcuttia pilosa Hoover hairy Orcutt grass E CA (E)
BLHI Blephilia hirsuta (Pursh) Benth. hairy pagoda-plant CT (SC), MA (E), VT (T)
LEMU3 Lechea mucronata Raf. hairy pinweed VT (E)
LEVI Lechea villosa Elliot IA (T)
ARHI Arabis hirsuta (L.) Scop. hairy rockcress PA (E), TN (SC)
CALA16 Carex lacustris Willd. hairy sedge MD (T), TN (T)
PORA4 Ponthieva racemosa (Walter) C. Mohr hairy shadow witch TN (E)
DECI Desmodium ciliare (Muhl. ex Willd.) DC. hairy small-leaf ticktrefoil NY (T), RI (T)
POPU4 Polygonatum pubescens (Willd.) Pursh hairy Solomon's seal IL (E)
FUSQ Fuirena squarrosa Michx. hairy umbrella-sedge MI (T), TN (SC)
MAVE2 Marsilea vestita Hook. & Grev. hairy waterclover IA (T), MN (E)
ELVI Elymus villosus Muhl. ex Willd. hairy wildrye MA (E), RI (SC)
BRPU6 Bromus pubescens Muhl. ex Willd. hairy woodland brome ME (PX), NH (T)
LUAC Luzula acuminata Raf. hairy woodrush IL (E), IN (E), NJ (E)
GOHI2 Gouania hillebrandii Oliv. ex Hillebr. hairyfruit chewstick E
CATR8 Carex trichocarpa Muhl. ex Willd. hairyfruit sedge CT (SC), MA (T)
THBA Thaspium barbinode (Michx.) Nutt. hairyjoint meadowparsnip WI (E)
RIHI Ribes hirtellum Michx. hairystem gooseberry IL (E), RI (SC)
POAR6 Polygonum arifolium L. halberdleaf tearthumb IL (E), TN (T)
SCHA4 Schiedea haleakalensis O. Deg. & Sherff Haleakala schiedea E
PECI4 Petrophytum cinerascens (Piper) Rydb. halfshrub rockmat WA (T)
SCHA10 Schoenoplectiella hallii (A.Gray) Lye Hall's bulrush
SCHA9 Schoenoplectus hallii (A. Gray) S.G. Sm. Hall's bulrush
SCHA Scirpus hallii A. Gray IL (T), IN (E), KY (E), MI (T), WI (E)
CLPY2 Clermontia pyrularia Hillebr. Hamakua clermontia E
HADI6 Habenaria distans Griseb. hammock bog orchid FL (E)
BLOC Blechnum occidentale L. hammock fern FL (E)
LACA8 Lantana canescens Kunth hammock shrubverbena FL (E)
HARO Hasteola robertiorum L.C. Anderson hammockherb FL (E)
CLVIH Claytonia virginica L. var. hammondiae (Kalmbacher) Doyle, W.H. Lewis & Snyder Hammond's claytonia NJ (E)
CLSA5 Clermontia samuelii Forbes Hana clermontia E
MEOV Melicope ovalis (H. St. John) T.G. Hartley & B.C. Stone Hana melicope E
CHPA14 Cheiroglossa palmata (L.) C. Presl hand fern
OPPA3 Ophioglossum palmatum L. FL (E)
RHVI Rhexia virginica L. handsome Harry IA (T), VT (T)
CAFO4 Carex formosa Dewey handsome sedge CT (T), MA (T), MN (E), NJ (E), NY (T), OH (PRX), PA (E), WI (T)
HUDI Huperzia dichotoma (Jacq.) Trevis. hanging clubmoss
LYDI2 Lycopodium dichotomum Jacq. FL (E)
ERBU Erigenia bulbosa (Michx.) Nutt. harbinger of spring NY (E), PA (T), WI (E)
CRHA2 Crataegus harbisonii Beadle Harbison's hawthorn TN (E)
SCACA Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve var. acutus hardstem bulrush
SCAC Scirpus acutus Muhl. ex Bigelow CT (T), PA (E)
HAFL3 Harperocallis flava McDaniel Harper's beauty E FL (E)
ERLOH Eriogonum longifolium Nutt. var. harperi (Goodman) Reveal Harper's buckwheat TN (E)
CUHA Cuscuta harperi Small Harper's dodder GA (T)
FIPE Fimbristylis perpusilla Harper ex Small & Britton Harper's fimbry GA (E), MD (E), NC (T), TN (E), VA (E)
XYSC Xyris scabrifolia Harper Harper's yelloweyed grass FL (T)
XYCH Xyris chapmanii Bridges & Orzell FL (E)
SOARH Solidago arguta Aiton var. harrisii (Steele) Cronquist Harris' goldenrod PA (E)
ASSCA Asplenium scolopendrium L. var. americanum (Fernald) Kartesz & Gandhi Hart's tonguefern T MI (E), NY (T), TN (E)
PSBA Pseudobahia bahiifolia (Benth.) Rydb. Hartweg's golden sunburst E CA (E)
CHPUH2 Chorizanthe pungens Benth. var. hartwegiana Reveal & Hardham Hartweg's spineflower E
GESA Gentiana saponaria L. harvestbells MI (PREX), NY (E), OH (E), PA (E)
AGPA6 Agrimonia parviflora Aiton harvestlice CT (SC), MA (E)
RAHA Ranunculus harveyi (A. Gray) Britton Harvey's buttercup IN (E)
MEHA3 Melicope haupuensis (H. St. John) T.G. Hartley & B.C. Stone Haupa Mountain melicope E
JAHA Jacquemontia havanensis (Jacq.) Urb. Havana clustervine FL (E)
SCHA6 Scutellaria havanensis Jacq. Havana skullcap FL (E)
ALMA Alectryon macrococcus Radlk. Hawai'i alectryon E
POSA2 Poa sandvicensis (Reichart) Hitchc. Hawai'i bluegrass E
PLHO4 Platanthera holochila (Hillebr.) Kraenzlin Hawai'i bog orchid E
SIHA5 Silene hawaiiensis Sherff Hawai'i catchfly T
PLHA4 Pleomele hawaiiensis O. Deg. & I. Deg. Hawai'i hala pepe E
SOSA4 Solanum sandwicense Hook. & Arn. Hawai'i horsenettle E
BOME2 Bonamia menziesii A. Gray Hawai'i lady's nightcap E
CAMA21 Caesalpinia major (Medik.) Dandy & Exell Hawai'i pearls FL (E)
PLHA2 Plantago hawaiensis (A. Gray) Pilg. Hawai'i plantain E
ZAHA Zanthoxylum hawaiiense Hillebr. Hawai'i pricklyash E
PRMA15 Pritchardia maideniana Becc. Hawai'i pritchardia
PRAF Pritchardia affinis Becc. Hawai'i pritchardia E
GEAR Geranium arboreum A. Gray Hawai'i red cranesbill E
SPHA2 Spermolepis hawaiiensis H. Wolff Hawai'i scaleseed E
ARSAM Argyroxiphium sandwicense DC. ssp. macrocephalum (A. Gray) Mérat Hawai'i silversword T
ARSAS Argyroxiphium sandwicense DC. ssp. sandwicense Hawai'i silversword E
KODR Kokia drynarioides (Seem.) Lewt. Hawai'i treecotton E
VIME Vicia menziesii Spreng. Hawai'i vetch E
VILA17 Viola lanaiensis Becker Hawai'i violet E
OCKI Ochrosia kilaueaensis H. St. John Hawai'i yellowwood E
CAAR4 Carex argyrantha Tuck. hay sedge TN (T)
CAHA7 Carex haydenii Dewey Hayden's sedge MI (PREX), NJ (E), NY (E), OH (PRX)
SENE9 Serianthes nelsonii Merr. Hayun lagu E
CUCO3 Cuscuta coryli Engelm. hazel dodder CT (SC), MD (E, X), OH (E), RI (H)
CEHE2 Ceanothus hearstiorum Hoover & J.B. Roof Hearst Ranch buckbrush CA (R)
ARHOH Arctostaphylos hookeri G. Don ssp. hearstiorum (Hoover & J.B. Roof) P.V. Wells Hearst's manzanita CA (R)
ARCO9 Arnica cordifolia Hook. heartleaf arnica MI (E)
TICO Tiarella cordifolia L. heartleaf foamflower NJ (E), WI (E)
STCO9 Stachys cordata Riddell heartleaf hedgenettle
STNU2 Stachys nuttallii Shuttlw. ex Benth. PA (E)
URCH3 Urtica chamaedryoides Pursh heartleaf nettle IL (T), OH (E)
TRCO Tragia cordata Michx. heartleaf noseburn IN (R)
PLCO2 Plantago cordata Lam. heartleaf plantain AR (T), IL (E), IN (E), KY (H), MD (E, X), MI (E), NY (T), NC (E), OH (T), TN (E), WI (E)
SCOV Scutellaria ovata Hill heartleaf skullcap MI (PREX), MN (T)
LICO6 Listera cordata (L.) R. Br. heartleaf twayblade MD (E, X), MA (E), NH (T), NJ (E), NY (EV), OH (PRX), PA (E), RI (H)
SACO3 Salix cordata Michx. heartleaf willow NY (E), WI (E)
SASY4 Salix syrticola Fernald IL (E)
RUHA2 Rumex hastatulus Baldw. heartwing sorrel NY (E), PA (X)
CAGR4 Carex gravida L.H. Bailey heavy sedge IN (E), MI (PREX), TN (SC)
CASEE Calystegia sepium (L.) R. Br. ssp. erratica Brummitt hedge false bindweed NJ (E)
LIHE2 Liatris helleri Porter Heller's blazing star T NC (SC, T)
DAHE2 Daphnopsis helleriana Urb. Heller's cieneguillo E PR (E)
PSHE4 Pseudognaphalium helleri (Britton) Anderb. Heller's cudweed ME (SC)
PSHEH7 Pseudognaphalium helleri (Britton) Anderb. ssp. helleri Heller's cudweed
GNHE Gnaphalium helleri Britton NJ (E), TN (SC)
PSHEM Pseudognaphalium helleri (Britton) Anderb. ssp. micradenium (Weath.) Kartesz Heller's cudweed
GNHEM Gnaphalium helleri Britton var. micradenium (Weath.) Mahler KY (H), NY (E)
DIOLO Dichanthelium oligosanthes (Schult.) Gould var. oligosanthes Heller's rosette grass
PAOL2 Panicum oligosanthes Schult. NY (E)
SCIN2 Scutellaria integrifolia L. helmet flower CT (E), NY (E)
DISAP Dichanthelium sabulorum (Lam.) Gould & C.A. Clark var. patulum (Scribn. & Merr.) Gould & C.A. Clark hemlock rosette grass
PACOE Panicum commonsianum Ashe var. euchlamydeum (Shinners) Pohl PA (E)
DISAT Dichanthelium sabulorum (Lam.) Gould & C.A. Clark var. thinium (Hitchc. & Chase) Gould & C.A. Clark hemlock rosette grass
PACO29 Panicum columbianum Scribn. IL (E), IN (R)
HYHE2 Hymenocallis henryae Traub ex J.E. Laferriere Henry's spiderlily FL (E)
HENO2 Hepatica nobilis Schreb. hepatica FL (E)
CHHE3 Chamaesyce herbstii W.L. Wagner Herbst's sandmat E
PTCA Ptilimnium capillaceum (Michx.) Raf. herbwilliam KY (T), PA (X), RI (SC)
JUHEH Juncus hemiendytus F.J. Herm. var. hemiendytus Herman's dwarf rush WA (S)
ASER4 Astragalus eremiticus Sheldon hermit milkvetch
ASAM14 Astragalus ampullarioides (S.L. Welsh) S.L. Welsh E
HETU2 Herzogiella turfacea (Lindb.) Z. Iwats. herzodiella moss KY (E)
ERHE9 Erigeron hessii G.L. Nesom Hess' fleabane NM (E)
POHI5 Potentilla hickmanii Eastw. Hickman's cinquefoil E CA (E)
POHI14 Polygonum hickmanii H. Hinds & R. Morgan Hickman's knotweed E
MACR2 Maxillaria crassifolia (Lindl.) Rchb. f. hidden orchid FL (E)
PHIN10 Phacelia inconspicua Greene hidden phacelia NV (FP)
SEEC Selaginella eclipes W.R. Buck hidden spikemoss IA (E), OH (T)
UTGE Utricularia geminiscapa Benj. hiddenfruit bladderwort IN (E), OH (E), RI (SC)
ABER Abutilon eremitopetalum Caum hiddenpetal Indian mallow E
VACO Vaccinium corymbosum L. highbush blueberry IL (E)
JUTR2 Juncus trifidus L. highland rush MD (E), NY (T), TN (PX, E)
JUTRC Juncus trifidus L. ssp. carolinianus Hämet-Ahti NC (E)
HYCU Hypericum cumulicola (Small) P. Adams highlands scrub St. Johnswort E FL (E)
CRPO6 Crescentia portoricensis Britton higuero de sierra E PR (E)
POHI4 Potamogeton hillii Morong Hill's pondweed CT (E), MA (SC), MI (T), NY (T), OH (E), PA (E)
CIHI Cirsium hillii (Canby) Fernald Hill's thistle IL (T), IN (E), WI (T)
CLLI3 Clermontia lindseyana Rock hillside clermontia E
ISBY Ischaemum byrone (Trin.) Hitchc. Hilo murainagrass E
QUHI Quercus hinckleyi C.H. Mull. Hinckley oak T TX (T)
DIHI13 Dichanthelium hirstii (Swallen) Kartesz Hirst's panicgrass
PAHI10 Panicum hirstii Swallen GA (E), NJ (E), NC (E)
MAHI Malvastrum hispidum (Pursh) Hochr. hispid false mallow KY (T)
CAHI8 Carex hitchcockiana Dewey Hitchcock's sedge CT (SC), MD (E), MA (SC), NY (T), TN (T)
HEBI2 Helianthemum bicknellii Fernald hoary frostweed KY (T), MD (E), OH (T), PA (E), TN (PX, E), VT (T)
PHPU4 Philadelphus pubescens Loisel. hoary mock orange KY (E)
PYIN Pycnanthemum incanum (L.) Michx. hoary mountainmint NH (E), VT (E)
SCIN Scutellaria incana Biehler hoary skullcap MI (PREX), NY (E)
VILA11 Viburnum lantanoides Michx. hobblebush KY (E)
VIAL3 Viburnum alnifolium Marshall NJ (E), RI (SC)
GITEH Gilia tenuiflora Benth. ssp. hoffmannii (Eastw.) A.D. Grant & V.E. Grant Hoffman's gilia E
ARHO Arabis hoffmannii (Munz) Rollins Hoffmann's rockcress E
LOKU Lomariopsis kunzeana (C. Presl ex Underw.) Holttum hollyleaf fringedfern FL (E)
IPSA2 Ipomopsis sancti-spiritus Wilken & Fletcher Holy Ghost ipomopsis E NM (E)
GUSA Guaiacum sanctum L. holywood FL (E)
PRGLG Prosopis glandulosa Torr. var. glandulosa honey mesquite AZ (SA, HR)
CYLA Cynanchum laeve (Michx.) Pers. honeyvine PA (E)
HAHA4 Haplostachys haplostachya (A. Gray) H. St. John honohono E
CYAC5 Cyanea acuminata (Gaudich.) Hillebr. Honolulu cyanea E
SACA21 Sagittaria calycina Engelm. hooded arrowhead ME (SC)
SACAS Sagittaria calycina Engelm. var. spongiosa Engelm. hooded arrowhead NY (T), PA (E)
SAMOS2 Sagittaria montevidensis Cham. & Schltdl. ssp. spongiosa (Engelm.) Bogin MA (E)
COST19 Corallorhiza striata Lindl. hooded coralroot
COST Corallorrhiza striata Lindl., orth. var. AZ (SR), NY (E)
SPRO Spiranthes romanzoffiana Cham. hooded lady's tresses AZ (SR), IL (E), IN (E), IA (T), MA (E), NY (EV), OH (T), PA (E)
GABI6 Galeandra bicarinata G.A. Romero & P.M. Brown hooded orchid
GABE2 Galeandra beyrichii auct. non Rchb. f. FL (E)
SAMI9 Sarracenia minor Walter hooded pitcherplant FL (T), GA (U)
VIAD Viola adunca Sm. hookedspur violet MA (E)
PLHO3 Platanthera hookeri (Torr. ex A. Gray) Lindl. Hooker's orchid CT (SC), IN (X), IA (T), NJ (E), NY (E), OH (PRX), PA (E), RI (H), VT (T)
TROC2 Trichostigma octandrum (L.) H. Walt. hoopvine FL (E)
LOTU Lomatium tuberosum Hoover Hoover's desertparsley WA (T)
CHHO3 Chamaesyce hooveri (L.C. Wheeler) Koutnik Hoover's sandmat T
TAHO Tauschia hooveri Mathias & Constance Hoover's umbrellawort WA (T)
UTCO Utricularia cornuta Michx. horned bladderwort IL (E), IN (T), OH (E), TN (SC)
ZAPA Zannichellia palustris L. horned pondweed IN (E), ME (SC), NH (T)
EPHO Epilobium hornemannii Rchb. Hornemann's willowherb ME (E), NH (T), NY (E)
POCE3 Podostemum ceratophyllum Michx. hornleaf riverweed CT (SC), KY (SC), ME (SC), MA (SC), NY (T), OH (E), RI (H)
BATI Baptisia tinctoria (L.) R. Br. horseflyweed KY (T), ME (E)
PAFL5 Paspalum fluitans (Elliot) Kunth horsetail paspalum MD (E)
CYHO Cyperus houghtonii Torr. Houghton's flatsedge IN (R), ME (PX), MA (E), NH (T), OH (PRX), PA (E), VT (T)
OLHO Oligoneuron houghtonii (Torr. & A. Gray ex A. Gray) G.L. Nesom Houghton's goldenrod
SOHO Solidago houghtonii Torr. & A. Gray ex A. Gray T MI (T), NY (E)
CAHO9 Carex houghtoniana Torr. ex Dewey Houghton's sedge NY (T)
ERHO3 Erigeron howellii A. Gray Howell's fleabane WA (T)
CAHO11 Calochortus howellii S. Watson Howell's mariposa lily OR (T)
MIHO2 Microseris howellii A. Gray Howell's silverpuffs OR (T)
THHOS2 Thelypodium howellii S. Watson ssp. spectabilis (M. Peck) Al-Shehbaz Howell's thelypody OR (E)
THHOS Thelypodium howellii S. Watson var. spectabilis M. Peck T
MACO4 Malaxis corymbosa (S. Watson) Kuntze Huachuca Mountain adder's-mouth orchid AZ (SR)
ASHY3 Astragalus hypoxylus S. Watson Huachuca Mountain milkvetch AZ (SR)
SEMUH Senecio multidentatus Sch. Bip. ex Hemsl. var. huachucanus (A. Gray) T.M. Barkley Huachuca Mountain ragwort
SEHU Senecio huachucanus A. Gray AZ (HS)
EUMA10 Euphorbia macropus (Klotzsch & Garcke) Boiss. Huachuca Mountain spurge
EUPL4 Euphorbia plummerae S. Watson, orth. var. AZ (SR)
SEST Sedum stelliforme S. Watson Huachuca Mountain stonecrop AZ (SR)
HIHU Hibiscadelphus hualalaiensis Rock Hualalai hau kuahiwi E
EUHU2 Euphrasia hudsoniana Fernald & Wiegand Hudson Bay eyebright MI (T)
CAHE4 Carex heleonastes L. f. Hudson Bay sedge MI (E)
ASAG Astragalus agnicidus Barneby Humboldt County milkvetch CA (E)
UTGI Utricularia gibba L. humped bladderwort RI (SC)
UTBI Utricularia biflora Lam. CT (SC), MD (E), NJ (E), RI (T)
UTFI Utricularia fibrosa Walter PA (X)
CLMO6 Clematis morefieldii Kral Huntsville vasevine E
PLHU2 Platanthera huronensis (Nutt.) Lindl. Huron green orchid NY (EV)
PHPUI Physalis pubescens L. var. integrifolia (Dunal) Waterf. husk tomato NY (E)
PHPR7 Physalis pruinosa auct. non L. ME (PX)
ERHY5 Erigeron hyssopifolius Michx. hyssopleaf fleabane ME (SC), MI (T), NY (E)
STAS Stachys aspera Michx. hyssopleaf hedgenettle MD (E)
STHY3 Stachys hyssopifolia Michx. hyssopleaf hedgenettle CT (E), NY (T), PA (X), RI (T)
STLY2 Stachys lythroides Small FL (E)
EUHY Eupatorium hyssopifolium L. hyssopleaf thoroughwort OH (E)
EUHYL Eupatorium hyssopifolium L. var. laciniatum A. Gray hyssopleaf thoroughwort NY (T)
RIOXI Ribes oxyacanthoides L. ssp. irriguum (Douglas) Sinnott Idaho gooseberry WA (S)
CEIG Celtis iguanaea (Jacq.) Sarg. iguana hackberry FL (E)
RUCE2 Rubus centralis L.H. Bailey Illinois dewberry IN (E)
CYGR11 Cyperus grayoides Mohlenbr. Illinois flatsedge IL (T)
CRPR5 Crataegus prona Ashe Illinois hawthorn IN (E)
LERA Lechea racemulosa Michx. Illinois pinweed IN (E), NY (R)
POIL Potamogeton illinoensis Morong Illinois pondweed KY (SC), NJ (E), PA (R)
DEIL2 Desmodium illinoense A. Gray Illinois ticktrefoil OH (PRX)
OXIL Oxalis illinoensis Schwegm. Illinois woodsorrel IL (E), IN (R)
TRRU2 Trillium rugelii Rendle illscented wakerobin TN (E)
CADE27 Calocedrus decurrens (Torr.) Florin incense cedar NV (CY)
AGIN3 Agrimonia incisa Torr. & A. Gray incised agrimony FL (E)
MEVI Medeola virginiana L. Indian cucumber FL (E), IL (E)
ERAL12 Eriodictyon altissimum P.V. Wells Indian Knob mountainbalm E CA (E)
ACHY Achnatherum hymenoides (Roem. & Schult.) Barkworth Indian ricegrass
ORHY Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper MN (E)
BRCOR2 Brodiaea coronaria (Salisb.) Engl. ssp. rosea (Greene) Niehaus Indian Valley brodiaea CA (E)
CHLA5 Chasmanthium latifolium (Michx.) Yates Indian woodoats MI (T)
SONU2 Sorghastrum nutans (L.) Nash Indiangrass ME (E), RI (SC)
APCA Apocynum cannabinum L. Indianhemp
APSI Apocynum sibiricum Jacq. MD (E, X)
CAGR24 Carex grisea Wahlenb. inflated narrow-leaf sedge ME (SC)
ILGL Ilex glabra (L.) A. Gray inkberry CT (T), ME (T), NY (EV), PA (X)
HYTR Hypelate trifoliata Sw. inkwood FL (E)
PONEI2 Poa nemoralis L. ssp. interior (Rydb.) W.A. Weber inland bluegrass
POIN Poa interior Rydb. NY (E)
MUGL Muhlenbergia glabriflora Scribn. inland muhly KY (SC), TN (SC)
JUIN2 Juncus interior Wiegand inland rush OH (E)
RAIN3 Ramalina intermedia (Delise ex Nyl.) Nyl. intermediate cartilage lichen OH (E)
SCPAI2 Sclerocactus parviflorus Clover & Jotter ssp. intermedius (Peebles) K.D. Heil & J.M. Porter intermediate fishhook cactus
SCPAI Sclerocactus parviflorus Clover & Jotter var. intermedius (Peebles) Woodruff & L.D. Benson AZ (SR)
DRIN5 Dryopteris intermedia (Muhl. ex Willd.) A. Gray intermediate woodfern IA (T), NY (EV)
YUBAI Yucca baileyi Woot. & Standl. var. intermedia (McKelvey) Reveal intermediate yucca AZ (SR)
OSCL2 Osmunda claytoniana L. interrupted fern AR (T), NY (EV)
LYIN2 Lycopodiella inundata (L.) Holub inundated clubmoss IN (E), KY (E), NY (EV), WA (S)
LYIN Lycopodium inundatum L. IL (E), IA (E)
ERAP4 Eriogonum apricum J.T. Howell Ione buckwheat E
ERAPA Eriogonum apricum J.T. Howell var. apricum Ione buckwheat CA (E)
ARMY Arctostaphylos myrtifolia Parry Ione manzanita T
CHALS3 Chrysosplenium alternifolium L. var. sibiricum Ser. ex DC. Iowa golden saxifrage
CHIO Chrysosplenium iowense Rydb. IA (T), MN (E)
BOCA5 Botrychium campestre W.H. Wagner & Farrar Iowa moonwort MI (T), NY (E), WA (S)
ERAPP Eriogonum apricum J.T. Howell var. prostratum Myatt Irish Hill buckwheat CA (R)
XYLAI Xyris laxifolia Mart. var. iridifolia (Chapm.) Kral irisleaf yelloweyed grass TN (SC)
MAPII Mahonia pinnata (Lag.) Fedde ssp. insularis (Munz) J.B. Roof island barberry CA (E)
BEPII Berberis pinnata Lag. ssp. insularis Munz E
HEGR2 Helianthemum greenei B.L. Rob. island rushrose T
RAHE2 Ranunculus hederaceus L. ivy buttercup MD (E, X), PA (X)
PIBA2 Pinus banksiana Lamb. jack pine IL (E), IN (R), NH (T), NY (R), VT (T)
PEAM6 Peperomia amplexicaulis (Sw.) A. Dietr. Jackie's saddle FL (E)
YUBRJ Yucca brevifolia Engelm. var. jaegeriana McKelvey Jaeger's Joshua tree AZ (SR), NV (CY)
CHGLM2 Chamaecrista glandulosa (L.) Greene var. mirabilis (Pollard) Irwin & Barneby Jamaican broom E PR (E)
POJA3 Polanisia jamesii (Torr. & A. Gray) Iltis James' clammyweed IL (E), IA (E)
CRJA5 Cristatella jamesii Torr. & A. Gray MN (E)
CAJA2 Carex jamesii Schwein. James' sedge MN (T), NJ (E), NY (T)
NYJA Nymphaea jamesoniana Planch. James' waterlily FL (E)
SEOB4 Senna obtusifolia (L.) Irwin & Barneby Java-bean IN (R)
PIJE Pinus jeffreyi Balf. Jeffrey pine NV (CY)
COCO25 Collema coccophorum Tuck. jelly lichen OH (E)
COCR6 Collema crispum (Huds.) F.H. Wigg. jelly lichen OH (PRX)
COFU60 Collema fuscovirens (With.) J.R. Laundon jelly lichen OH (E)
CEHE Ceanothus herbaceus Raf. Jersey tea IL (E), IN (X), KY (T), NY (E), OH (E), VT (E)
SYJE Symphyotrichum jessicae (Piper) G.L. Nesom Jessica's aster
ASJE Aster jessicae Piper WA (E)
IVFR Iva frutescens L. Jesuit's bark ME (E)
IVFRO2 Iva frutescens L. ssp. oraria (Bartlett) R.C. Jacks. Jesuit's bark NH (T)
ASROJ Astragalus robbinsii (Oakes) A. Gray var. jesupii Eggl. & Sheldon Jesup's milkvetch E NH (E), VT (E)
DOAM Dodecatheon amethystinum (Fassett) Fassett jeweled shootingstar IA (T), PA (T)
JAKE Jacquinia keyensis Mez joewood FL (T)
ECJO3 Echinomastus johnsonii (Parry ex Engelm.) E.M. Baxter Johnson's fishhook cactus AZ (SR)
NEJO Neolloydia johnsonii (Parry ex Engelm.) L.D. Benson NV (CY)
HAJO Halophila johnsonii Eiseman Johnson's seagrass T
FRJO Frankenia johnstonii Correll Johnston's seaheath E TX (E)
ELEQ Eleocharis equisetoides (Elliot) Torr. jointed spikesedge CT (E), IN (E), MD (E), NJ (E), NY (T), RI (SC), TN (E)
JUAR4 Juncus articulatus L. jointleaf rush IN (E), KY (SC)
SARUJ Sarracenia rubra Walter ssp. jonesii (Wherry) Wherry Jones' pitcherplant E
SAJO Sarracenia jonesii Wherry NC (SC, E)
CYHUJ Cycladenia humilis Benth. var. jonesii (Eastw.) S.L. Welsh & N.D. Atwood Jones' waxydogbane
CYJO2 Cycladenia jonesii Eastw. T
YUBRB Yucca brevifolia Engelm. var. brevifolia Joshua tree AZ (SR), NV (CY)
IRRH Iresine rhizomatosa Standl. Juda's bush IL (E), IN (R), MD (E)
DEEU Dedeckera eurekensis Reveal & J.T. Howell July gold CA (R)
CYFUF Cylindropuntia fulgida (Engelm.) F.M. Knuth var. fulgida jumping cholla
OPFUF Opuntia fulgida Engelm. var. fulgida AZ (SR)
CYFUM Cylindropuntia fulgida (Engelm.) F.M. Knuth var. mamillata (Schott ex Engelm.) Backeb. jumping cholla
OPFUM Opuntia fulgida Engelm. var. mamillata (Schott ex Engelm.) J.M. Coult. AZ (SR)
CAJU2 Carex juniperorum Catling, Reznicek & Crins juniper sedge KY (E), OH (T)
EULE Eupatorium leucolepis (DC.) Torr. & A. Gray justiceweed MD (T), PA (X), TN (E)
EULEL Eupatorium leucolepis (DC.) Torr. & A. Gray var. leucolepis justiceweed NY (E)
PHKA6 Phyllostegia kaalaensis H. St. John Kaala phyllostegia E
NOHU Nototrichium humile Hillebr. kaala rockwort E
CYCR4 Cyrtandra crenata H. St. John & Storey Kahana Valley cyrtandra E
SCHE2 Schiedea helleri Sherff Kaholuamanu schiedea E
AGUTK Agave utahensis Engelm. var. kaibabensis (McKelvey) Breitung Kaibab agave AZ (SR)
PEPA5 Pediocactus paradinei B.W. Benson Kaibab pincushion cactus AZ (HS)
CYST5 Cyanea stictophylla Rock Kaiholena cyanea E
REMO Remya montgomeryi W.L. Wagner & D.R. Herbst Kalalau Valley remya E
STCA12 Stenogyne campanulata Weller & Sakai Kalalau Valley stenogyne E
BIMIK2 Bidens micrantha Gaudich. ssp. kalealaha Nagata & Ganders Kalealaha beggarticks E
HIKA2 Hieracium kalmii L. Kalm's hawkweed NJ (E)
HYKA Hypericum kalmianum L. Kalm's St. Johnswort IL (E), OH (T)
SIAL4 Silene alexandri Hillebr. Kamalo Gulch catchfly E
SCLY2 Schiedea lydgatei Hillebr. Kamalo Gulch schiedea E
PRMU3 Pritchardia munroi Rock Kamalo pritchardia E
CEAG Cenchrus agrimonioides Trin. kamanomano E
FRCA5 Fritillaria camschatcensis (L.) Ker Gawl. Kamchatka fritillary WA (S)
YUANK Yucca angustissima Engelm. ex Trel. var. kanabensis (McKelvey) Reveal Kanab yucca AZ (SR)
KAKA Kanaloa kahoolawensis D.H. Lorence & K.R. Wood kanaloa E
TRVI3 Trifolium virginicum Small ex Small & Vail Kates Mountain clover MD (T), PA (E)
ARKA2 Argyroxiphium kauense (Rock & Neal) O. Deg. & I. Deg. kau silversword E
POSI Poa siphonoglossa Hack. Kauai bluegrass E
SILA7 Silene lanceolata A. Gray Kauai catchfly E
DERH2 Delissea rhytidosperma H. Mann Kauai delissea E
HIDI Hibiscadelphus distans Bishop & D.R. Herbst Kauai hau kuahiwi E
HELY Hesperomannia lydgatei Forbes Kauai island-aster E
LIMI8 Lipochaeta micrantha (Nutt.) A. Gray Kauai nehe E
PHWA Phyllostegia waimeae Wawra Kauai phyllostegia E
PTKA Pteralyxia kauaiensis Caum Kauai pteralyxia E
REKA Remya kauaiensis Hillebr. Kauai remya E
CHHA2 Chamaesyce halemanui (Sherff) Croizat & O. Deg. Kauai sandmat E
SCAP Schiedea apokremnos H. St. John Kauai schiedea E
SCKA4 Schiedea kauaiensis H. St. John Kauai schiedea E
EUHA2 Euphorbia haeleeleana D.R. Herbst Kauai spurge E
KOKA Kokia kauaiensis (Rock) O. Deg. & Duvel Kauai treecotton E
COOP Colubrina oppositifolia Brongn. ex Mann kauila E
ZADIT Zanthoxylum dipetalum H. Mann var. tomentosum Rock kawa'u E
BRIN5 Brodiaea insignis (Jeps.) Niehaus Kaweah brodiaea CA (E)
DUHE Dubautia herbstobatae G.D. Carr Keaau Valley dubautia E
CYRE8 Cyanea recta (Wawra) Hillebr. Kealia cyanea T
AMKE Amsonia kearneyana Woodson Kearney's bluestar E AZ (HS)
RHKE Rhus kearneyi F.A. Barkley Kearney's sumac AZ (SR)
SIKE Sidalcea keckii Wiggins Keck's checkerbloom E
ORKE Orthotrichum keeverae H.A. Crum & L.E. Anderson Keever's orthotrichum moss NC (E)
JUKE Juncus kelloggii Engelm. Kellogg's dwarf rush WA (T)
CRKE2 Crataegus kelloggii Sarg. Kellogg's hawthorn IN (E)
POPRA6 Poa pratensis L. ssp. alpigena (Fr. ex Blytt) Hiitonen Kentucky bluegrass NH (E)
GYDI Gymnocladus dioicus (L.) K. Koch Kentucky coffeetree NY (E)
CYKE2 Cypripedium kentuckiense C.F. Reed Kentucky lady's slipper KY (SC), TN (E)
CLKE Cladrastis kentukea (Dum. Cours.) Rudd Kentucky yellowwood
CLLU Cladrastis lutea (Michx. f.) K. Koch IL (E), IN (T)
SIORV Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray ssp. valida (Greene) C.L. Hitchc. Kenwood Marsh checkerbloom E CA (E)
ERPAK Eremalche parryi (Greene) Greene ssp. kernensis (C.B. Wolf) D.M. Bates Kern mallow
ERKE4 Eremalche kernensis C.B. Wolf E
LEMO5 Leucothrinax morrisii (H. Wendl.) C.Lewis & Zona Key thatch palm
THMO4 Thrinax morrisii H. Wendl. Key thatch palm FL (E)
HEFR2 Heliotropium fruticosum L. Key West heliotrope FL (E)
PAAS2 Parnassia asarifolia Vent. kidneyleaf grass of Parnassus KY (E), MD (E)
HERE Heteranthera reniformis Ruiz & Pav. kidneyleaf mudplantain CT (SC), IL (E), OH (E)
LISM Listera smallii Wiegand kidneyleaf twayblade KY (T), MD (E), NJ (E), PA (E), TN (SC)
CARE17 Carex reniformis (L.H. Bailey) Small kidneyshape sedge IL (E), KY (E), TN (SC)
HIGI Hibiscadelphus giffardianus Rock Kilauea hau kuahiwi E
LUORK Lupinus oreganus A. Heller var. kincaidii C.P. Sm. Kincaid's lupine T
LUSUK Lupinus sulphureus Douglas ex Hook. ssp. kincaidii (C.P. Sm.) L. Phillips OR (T)
LUSUK2 Lupinus sulphureus Douglas ex Hook. var. kincaidii (C.P. Sm.) C.L. Hitchc. WA (E)
LEKIB Lesquerella kingii S. Watson ssp. bernardina (Munz) Munz King bladderpod E
THPU2 Thalictrum pubescens Pursh king of the meadow IN (T)
IVKI Ivesia kingii S. Watson King's mousetail
IVKIE Ivesia kingii S. Watson var. eremica (Coville) Ertter T NV (FP)
ECTR Echinocereus triglochidiatus Engelm. kingcup cactus NV (CY)
ECTRT Echinocereus triglochidiatus Engelm. var. triglochidiatus kingcup cactus AZ (SR)
ECTRG Echinocereus triglochidiatus Engelm. var. gonacanthus (Engelm. & Bigelow) Boissev. AZ (SR)
ARUV Arctostaphylos uva-ursi (L.) Spreng. kinnikinnick IL (E), IN (R), IA (E), OH (PRX), PA (X)
HECO14 Hedyotis coriacea Sm. kio'ele E
PHRA6 Phyllostegia racemosa Benth. kiponapona E
MEZA Melicope zahlbruckneri (Rock) T.G. Hartley & B.C. Stone kipuka piaula E
NOFEC Noccaea fendleri (A. Gray) Holub ssp. californica (S. Watson) Al-Shehbaz & M. Koch Kneeland Prairie pennycress
NOCA3 Noccaea californica (S. Watson) Kartesz, ined. Kneeland Prairie pennycress
THCA3 Thlaspi californicum S. Watson E
RHKN Rhynchospora knieskernii Carey Knieskern's beaksedge T NJ (E)
CARE4 Carex retrorsa Schwein. knotsheath sedge IN (E), OH (E), PA (E)
SANO Sagina nodosa (L.) Fenzl knotted pearlwort MI (T)
SANOB Sagina nodosa (L.) Fenzl ssp. borealis Crow knotted pearlwort MN (E)
SANON Sagina nodosa (L.) Fenzl ssp. nodosa knotted pearlwort MA (T)
PEKN2 Pediocactus knowltonii L.D. Benson Knowlton's miniature cactus E NM (E)
ABME2 Abutilon menziesii Seem. ko'oloa 'ula E
CLDR2 Clermontia drepanomorpha Rock Kohala Mountain clermontia E
DULA3 Dubautia latifolia (A. Gray) D.D. Keck koholapehu E
CHKU Chamaesyce kuwaleana (O. Deg. & Sherff) O. Deg. & I. Deg. kokomalei E
TEGY Tetraplasandra gymnocarpa (Hillebr.) Sherff Koolau Range 'ohe E
DESU Delissea subcordata Gaudich. Koolau Range delissea E
LACY Labordia cyrtandrae (Baill.) H. St. John Koolau Range labordia E
LOGAK3 Lobelia gaudichaudii A. DC. ssp. koolauensis (Hosaka & Fosberg) Lammers Koolau Range lobelia E
MELY Melicope lydgatei (Hillebr.) T.G. Hartley & B.C. Stone Koolau Range melicope E
CYCR9 Cyanea crispa (Gaudich.) Lammers, Givnish & Sytsma Koolau Range rollandia E
CHRO2 Chamaesyce rockii (Forbes) Croizat & O. Deg. Koolau Range sandmat E
HESCR7 Hedyotis schlechtendahliana Steud. ssp. remyi (Hillebr.) Fosberg kopa
HESCR3 Hedyotis schlechtendahliana Steud. var. remyi (Hillebr.) Fosberg E
PAKO3 Parnassia kotzebuei Cham. ex Spreng. Kotzebue's grass of Parnassus WA (S)
XYLO Xyris longisepala Kral Kral's yelloweyed grass FL (E)
ASOS Astragalus osterhoutii M.E. Jones Kremmling milkvetch E
ALLY3 Alsinidendron lychnoides (Hillebr.) Sherff kuawawaenohu E
ALKU Allium kunthii G. Don Kunth's onion AZ (SR)
CILO Cirsium loncholepis Petr. la graciosa thistle E CA (T)
RARH Ranunculus rhomboideus Goldie Labrador buttercup IL (T), MI (T)
CASE4 Castilleja septentrionalis Lindl. Labrador Indian paintbrush ME (SC), MI (T), MN (E), NH (T), VT (T)
SAAR7 Salix argyrocarpa Andersson Labrador willow ME (E), NH (T)
ERCA Eragrostis capillaris (L.) Nees lace grass ME (E)
PTNU Ptilimnium nuttallii (DC.) Britton laceflower IL (E), KY (E)
SPLA3 Spiranthes laciniata (Small) Ames lacelip lady's tresses FL (T), NJ (E)
MALA2 Mammillaria lasiacantha Engelm. lacespine nipple cactus AZ (SR)
DUST Dudleya stolonifera Moran Laguna Beach liveforever T CA (R)
HEDI3 Hesperolinon didymocarpum H. Sharsm. Lake County dwarf-flax CA (E)
SELE7 Sedella leiocarpa H. Sharsm. Lake County mock stonecrop
PALE8 Parvisedum leiocarpum (H. Sharsm.) R.T. Clausen E CA (E)
TABI Tanacetum bipinnatum (L.) Sch. Bip. Lake Huron tansy ME (SC)
TABIH Tanacetum bipinnatum (L.) Sch. Bip. ssp. huronense (Nutt.) Breitung Lake Huron tansy
TAHU Tanacetum huronense Nutt. MI (T), WI (E)
ISLA Isoetes lacustris L. lake quillwort MA (E), NJ (E), NY (R), TN (E)
ROSU2 Rorippa subumbellata Rollins Lake Tahoe yellowcress CA (E), NV (FP)
DICH4 Dicerandra christmanii R.B. Huck & W.S. Judd Lake Wales balm E FL (E)
NEAQ2 Neobeckia aquatica (Eaton) Greene lakecress TN (SC), VT (T)
ARAQ Armoracia aquatica (Eaton) Wiegand IN (E)
ARLA22 Armoracia lacustris (A. Gray) Al-Shehbaz & V.M. Bates KY (T), ME (PX), MD (E), MI (T), NJ (E), OH (T), WI (E)
ROAQ Rorippa aquatica (Eaton) Palmer & Steyerm. NY (T)
LELA11 Lechea lakelae Wilbur Lakela's pinweed FL (E)
CALE8 Carex lenticularis Michx. lakeshore sedge MA (T), WI (T)
HECA14 Helianthus carnosus Small lakeside sunflower FL (E)
TRLA2 Trema lamarckiana (Schult.) Blume Lamarck's trema FL (E)
MEMU5 Melicope munroi (H. St. John) T.G. Hartley & B.C. Stone lanahale E
HEAR9 Hesperomannia arborescens A. Gray Lanai island-aster E
LATIL Labordia tinifolia A. Gray var. lanaiensis Sherff Lanai labordia E
SAFRL2 Santalum freycinetianum Gaudich. var. lanaiense Rock Lanai sandalwood E
GALA7 Gahnia lanaiensis O. Deg., I. Deg. & J. Kern Lanai sawsedge E
CYMU5 Cyrtandra munroi Forbes Lanaihale cyrtandra E
SOLA6 Solidago lancifolia Torr. & A. Gray lance-leaf goldenrod TN (E)
ARLA7 Arnica lanceolata Nutt. lanceleaf arnica ME (T), NH (T), NY (E)
RHLA Rhamnus lanceolata Pursh lanceleaf buckthorn PA (E)
SCLA Scrophularia lanceolata Pursh lanceleaf figwort RI (SC)
PHLA3 Phyla lanceolata (Michx.) Greene lanceleaf fogfruit NJ (E), PA (R)
BOLA Botrychium lanceolatum (S.G. Gmel.) Angstr. lanceleaf grapefern MD (E, X), MN (T), NY (EV), OH (PRX)
BOLAA2 Botrychium lanceolatum (S.G. Gmel.) Angstr. var. angustisegmentum Pease & A.H. Moore lanceleaf grapefern
BOLAA Botrychium lanceolatum (S.G. Gmel.) Angstr. ssp. angustisegmentum (Pease & A.H. Moore) R.T. Clausen RI (SC)
SADI2 Sabatia difformis (L.) Druce lanceleaf rose gentian MD (E)
SCLA9 Schlotheimia lancifolia E.B. Bartram lanceleaf schlotheimia moss NC (T)
TRLA15 Trillium lancifolium Raf. lanceleaf wakerobin FL (E), TN (E)
GALA3 Galium lanceolatum Torr. lanceleaf wild licorice IL (E)
PRSC Pritchardia schattaueri Hodel lands of papa pritchardia E
ASJA Astragalus jaegerianus Munz Lane Mountain milkvetch E
RALA Ranunculus lapponicus L. Lapland buttercup ME (T), MI (T), WI (E)
RHLA2 Rhododendron lapponicum (L.) Wahlenb. Lapland rosebay ME (T), NY (E), WI (E)
RHMA5 Rhynchospora macra (C.B. Clarke ex Britton) Small large beaksedge NC (E)
PEGR7 Penstemon grandiflorus Nutt. large beardtongue IL (E)
HYMA2 Hypericum majus (A. Gray) Britton large St. Johnswort NJ (E), PA (T), WA (S)
CAMA36 Cardamine maxima (Nutt.) Alph. Wood large toothwort ME (PX), NJ (E)
DEMA Dentaria maxima Nutt. MI (T)
ISVE Isotria verticillata Raf. large whorled pogonia FL (E), IL (E), ME (PX), MI (T), NH (E), NY (EV), VT (T)
DECU Desmodium cuspidatum (Muhl. ex Willd.) DC. ex D. Don largebract ticktrefoil MA (T), VT (E)
UVGR Uvularia grandiflora Sm. largeflower bellwort CT (E), NH (E)
COGR8 Conradina grandiflora Small largeflower false rosemary FL (T)
PHCA48 Phemeranthus calycinus (Engelm.) Kiger largeflower fameflower
TACA Talinum calycinum Engelm. IL (E)
HESHH Hexastylis shuttleworthii (Britten & Baker f.) Small var. harperi Gaddy largeflower heartleaf GA (U)
ALMA4 Allium macropetalum Rydb. largeflower onion AZ (SR)
HABRB Hastingsia bracteosa S. Watson var. bracteosa largeflower rushlily OR (T)
SCMO6 Scutellaria montana Chapm. largeflower skullcap T GA (E), TN (E)
VAPA2 Valeriana pauciflora Michx. largeflower valerian MD (E)
AUGRP Aureolaria grandiflora (Benth.) Pennell var. pulchra Pennell largeflower yellow false foxglove IN (X)
AMGR3 Amsinckia grandiflora (Kleeb. ex A. Gray) Kleeb. ex Greene largeflowered fiddleneck E CA (E)
SATR4 Sanicula trifoliata E.P. Bicknell largefruit blacksnakeroot NH (T), NJ (E)
ABMA5 Abronia macrocarpa L.A. Galloway largefruit sand verbena E TX (E)
SOMA4 Solidago macrophylla Pursh largeleaf goldenrod MA (T)
PAGR Parnassia grandifolia DC. largeleaf grass of Parnassus FL (E), KY (E), NC (T), TN (SC)
POMA14 Polygonella macrophylla Small largeleaf jointweed FL (T)
ORMA2 Orbexilum macrophyllum (Rowlee) Rydb. largeleaf leather-root NC (E)
PHAM7 Phlox amplifolia Britton largeleaf phlox IN (T)
POAM5 Potamogeton amplifolius Tuck. largeleaf pondweed MD (E, X), TN (T)
MOMA3 Moehringia macrophylla (Hook.) Fenzl largeleaf sandwort MA (E), MN (T), WI (E)
ARMA18 Arenaria macrophylla Hook. CT (E), MI (T)
HYMA Hydrophyllum macrophyllum Nutt. largeleaf waterleaf MD (T), PA (E)
LEIN Lechea intermedia Leggett ex Britton largepod pinweed IL (T), IA (T), OH (T)
CODE3 Coreopsis delphiniifolia Lam. larkspurleaf tickseed TN (E)
CRIN15 Cryptantha insolita (J.F. Macbr.) Payson Las Vegas cryptantha NV (FP)
TOAP Townsendia aprica S.L. Welsh & Reveal Last Chance Townsend daisy T
SYPAP2 Symphyotrichum patens (Aiton) G.L. Nesom var. patens late purple aster
ASPA5 Aster patens Aiton ME (PX), NH (T)
EUSE2 Eupatorium serotinum Michx. lateflowering thoroughwort NY (E)
THRE5 Thelypteris reticulata (L.) Proctor latticevein fern FL (E)
SCST3 Schiedea stellarioides H. Mann lau lihilihi E
CYTI Cyrtandra tintinnabula Rock Laupahoehoe cyrtandra E
PHWA3 Phyllostegia warshaueri H. St. John Laupahoehoe phyllostegia E
ASCOL Astragalus collinus Douglas ex G. Don var. laurentii (Rydb.) Barneby Laurent's milkvetch OR (T)
MERE3 Melicope reflexa (H. St. John) T.G. Hartley & B.C. Stone lava melicope E
CESE6 Centaurium sebaeoides (Griseb.) Druce lavaslope centaury E
TRSI5 Trematolobelia singularis H. St. John lavaslope false lobelia E
UTRE Utricularia resupinata B.D. Greene ex Bigelow lavender bladderwort CT (E), IN (X), ME (E), MD (E), MA (T), NJ (E), PA (X), RI (SC), TN (SC), VT (T)
SYPR4 Symphyotrichum priceae (Britton) G.L. Nesom lavender oldfield aster
ASPIP2 Aster pilosus Willd. var. priceae (Britton) Cronquist KY (T)
LICA17 Limonium carolinianum (Walter) Britton lavender thrift NY (EV)
PLGR6 Platanthera gracilis Lindl. lax-flowered green orchid
PLHYG Platanthera hyperborea (L.) Lindl. var. gracilis (Lindl.) Luer AZ (SR)
PALA41 Packera layneae (Greene) W.A. Weber & Á. Löve Layne's ragwort
SELA4 Senecio layneae Greene T CA (R)
STLA11 Stenorrhynchos lanceolatum (Aubl.) Rich. leafless beaked lady orchid FL (T)
CAPA32 Campylocentrum pachyrrhizum (Rchb. f.) Rolfe leafless bentspur orchid FL (E)
VADI2 Vanilla dilloniana Correll leafless vanilla FL (E)
EXLU Exocarpos luteolus Forbes leafy ballart E
SCPO2 Scirpus polyphyllus Vahl leafy bulrush IL (T), NH (E), VT (E)
POFO3 Potamogeton foliosus Raf. leafy pondweed MD (E), NH (E)
DAFO2 Dalea foliosa (A. Gray) Barneby leafy prairie clover E IL (E), TN (E)
CAFO Calamagrostis foliosa Kearney leafy reedgrass CA (R)
VAPH Vanilla phaeantha Rchb. f. leafy vanilla FL (E)
SAFO4 Saxifraga foliolosa R. Br. leafystem saxifrage ME (E)
OCCA5 Ocimum campechianum Mill. least basil FL (E)
LEMI6 Lemna minuta Kunth least duckweed
LEMI10 Lemna minima Phil., non Thuill. ex P. Beauv. IN (E)
TEFI3 Tectaria fimbriata (Willd.) Proctor & Lourteig least halberd fern FL (E)
CHCA2 Chamaedaphne calyculata (L.) Moench leatherleaf IL (T), MD (T)
TIVA2 Tillandsia variabilis Schltdl. leatherleaf airplant
TIVA Tillandsia valenzuelana A. Rich. FL (T)
BOMU Botrychium multifidum (S.G. Gmel.) Trevis. leathery grapefern IL (E), IA (T), MD (E, X), NJ (E), NY (EV), OH (T)
BOMUI Botrychium multifidum (S.G. Gmel.) Trevis. var. intermedium (D.C. Eaton) Farw. IN (X)
JUCO4 Juncus coriaceus Mack. leathery rush NJ (E)
FECYL Ferocactus cylindraceus (Engelm.) Orcutt var. lecontei (Engelm.) H. Bravo Leconte's barrel cactus AZ (SR), NV (CY)
ECLE2 Echinocereus ledingii Peebles Leding's hedgehog cactus AZ (SR)
NEUM Nestronia umbellula Raf. leechbrush GA (T), KY (E), TN (E), VA (E)
CYUN5 Cyanea undulata Forbes leechleaf cyanea E
DEUN2 Delissea undulata Gaudich. leechleaf delissea E
RHINL Rhodiola integrifolia Raf. ssp. leedyi (Rosend. & J.W. Moore) Kartesz Leedy's stonecrop
SEINL Sedum integrifolium (Raf.) A. Nelson ssp. leedyi (Rosend. & J.W. Moore) R.T. Clausen T MN (E), NY (E)
LEPU4 Lechea pulchella Raf. Leggett's pinweed MI (T), OH (T), TN (E)
LEPUM Lechea pulchella Raf. var. moniliformis (E.P. Bicknell) Seymour Leggett's pinweed MA (E), NY (E)
DILE2 Dichanthelium leibergii (Vasey) Freckmann Leiberg's panicum
PALE7 Panicum leibergii (Vasey) Scribn. IN (T), MI (T), NY (E), OH (T), PA (X)
TATE3 Tauschia tenuissima (Geyer ex Hook.) Mathias & Constance Leiberg's umbrellawort WA (PX)
NYLE Nymphaea leibergii Morong Leiberg's waterlily ME (T), MN (T)
ERLE14 Erigeron lemmonii A. Gray Lemmon's fleabane AZ (HS)
CALE7 Carex lemmonii W. Boott Lemmon's sedge
CAAL4 Carex albida L.H. Bailey white sedge E CA (E)
LIPA2 Lilium parryi S. Watson lemon lily AZ (SR)
SCPAM Scutellaria parvula Michx. var. missouriensis (Torr.) Goodman & C.A. Lawson Leonard's skullcap
SCLE Scutellaria leonardii Epling CT (E), MD (T), NJ (E)
LEEX4 Leptodontium excelsum (Sull.) E. Britton leptodontium moss TN (E)
LELE9 Lesquerella lescurii (A. Gray) S. Watson Lescur's bladderpod KY (SC)
CAAT8 Carex atrosquama Mack. lesser blackscale sedge WA (S)
UTMI Utricularia minor L. lesser bladderwort IL (E), IN (E), NJ (E), NY (T), PA (T), RI (H)
CAAD2 Carex adusta Boott lesser brown sedge ME (E), PA (X)
HYCA7 Hypericum canadense L. lesser Canadian St. Johnswort OH (E)
GEVIV3 Gentianopsis virgata (Raf.) Holub ssp. virgata lesser fringed gentian
GEPR6 Gentianopsis procera (T. Holm) Ma NY (E), PA (X)
TRTU Triadenum tubulosum (Walter) Gleason lesser marsh St. Johnswort OH (T)
CADI4 Carex diandra Schrank lesser panicled sedge MD (E), NH (E), PA (T)
PLPS2 Platanthera psycodes (L.) Lindl. lesser purple fringed orchid IL (E), IN (R), IA (T), KY (E), MD (E, X), NY (EV), OH (E), RI (SC), TN (T)
GORE2 Goodyera repens (L.) R. Br. lesser rattlesnake plantain AZ (SR), MD (E, X), MA (E), NY (EV), TN (SC)
GOREO2 Goodyera repens (L.) R. Br. var. ophioides Fernald CT (SC)
PLOR4 Platanthera orbiculata (Pursh) Lindl. lesser roundleaved orchid CT (SC), IN (X), NJ (E), NY (EV), RI (T), TN (T)
HAVE4 Hackelia venusta (Piper) H. St. John lesser showy stickseed E WA (E)
AGAR4 Ageratina aromatica (L.) Spach lesser snakeroot MA (E)
AGARA Ageratina aromatica (L.) Spach var. aromatica lesser snakeroot
EUAR7 Eupatorium aromaticum L. CT (E), NY (E), OH (T), RI (H)
CYPA19 Cypripedium parviflorum Salisb. lesser yellow lady's slipper CT (SC), IL (E), KY (T), NH (E), NY (E), PA (E), WA (E)
CYPAP4 Cypripedium parviflorum Salisb. var. parviflorum lesser yellow lady's slipper
CYCAP Cypripedium calceolus L. var. parviflorum (Salisb.) Fernald GA (U), IN (R), OH (E), RI (E)
SAMI6 Saxifraga micranthidifolia (Haw.) Steud. lettuceleaf saxifrage KY (E), PA (R)
POLE8 Polygala lewtonii Small Lewton's milkwort E FL (E)
PTLY Pteris lydgatei (Baker) Christ Lidgate's brake E
CAAL Callirhoe alcaeoides (Michx.) A. Gray light poppymallow IA (T), KY (H)
PEGR5 Penstemon gracilis Nutt. lilac penstemon IA (T), MI (E)
ACEX Acaena exigua A. Gray liliwai E
CYLI9 Cyrtandra limahuliensis H. St. John Limahuli cyrtandra T
LODI2 Lonicera dioica L. limber honeysuckle ME (E), RI (SC), TN (SC)
LODIG Lonicera dioica L. var. glaucescens (Rydb.) Butters IL (E)
LODIO Lonicera dioica L. var. orientalis Gleason KY (E)
PIFL2 Pinus flexilis James limber pine NV (CY)
OPEN Ophioglossum engelmannii Prantl limestone adderstongue IN (R), OH (E), PA (E)
CADO Cardamine douglassii Britton limestone bittercress CT (SC), MA (E)
CLAR5 Clinopodium arkansanum (Nutt.) House limestone calamint
CAAR33 Calamintha arkansana (Nutt.) Shinners OH (T)
SAGLA2 Satureja glabella (Michx.) Briq. var. angustifolia (Torr.) Svens. IN (E)
PHCA47 Phemeranthus calcaricus (Ware) Kiger limestone fameflower
TACA14 Talinum calcaricum Ware KY (E), TN (SC)
CYFU2 Cyperus fuligineus Chapm. limestone flatsedge FL (E)
ASBI6 Astragalus bibullatus Barneby & Bridges limestone glade milkvetch E TN (E)
SOCA9 Solidago calcicola Fernald limestone goldenrod ME (PX)
CAGR3 Carex granularis Muhl. ex Willd. limestone meadow sedge
CAGRH Carex granularis Muhl. ex Willd. var. haleana (Olney) Porter NH (E)
ISBU Isoetes butleri Engelm. limestone quillwort IL (E), KY (E)
ASVE6 Asplenium verecundum Chapm. ex Underw. limestone spleenwort FL (E)
GABR6 Galium brevipes Fernald & Wiegand limestone swamp bedstraw ME (SC)
RUST2 Ruellia strepens L. limestone wild petunia MD (E), MI (T), PA (T)
LEFI2 Lesquerella filiformis Rollins limestoneglade bladderpod T MO (E)
GLLA Glyceria laxa (Scribn.) Scribn. limp mannagrass TN (SC)
DIACL Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. lindheimeri (Nash) Gould & C.A. Clark Lindheimer panicgrass
PALI11 Panicum lindheimeri Nash OH (E)
SYCI Symphyotrichum ciliolatum (Lindl.) Á. Löve & D. Löve Lindley's aster
ASCI Aster ciliolatus Lindl. NH (T), NY (E)
TRLI Trichomanes lineolatum (Bosch) Hook. lined bristle fern FL (E)
CAST17 Carex striatula Michx. lined sedge IL (E), NY (E), OH (E)
VAVI Vaccinium vitis-idaea L. lingonberry MI (E)
LELA42 Leochilus labiatus (Sw.) Kuntze [excluded] lipped orchid FL (E)
POCL Potamogeton clystocarpus Fernald little aguja pondweed E TX (E)
AMPU7 Amphianthus pusillus Torr. little amphianthus T GA (T)
HOPU Hordeum pusillum Nutt. little barley PA (X)
SCPU2 Schizaea pusilla Pursh little curlygrass fern NY (E)
LEOB2 Lemna obscura (Austin) Daubs little duckweed PA (X)
OEPE Oenothera perennis L. little evening primrose IL (T), IN (T), IA (T), KY (E)
UTRA Utricularia radiata Small little floating bladderwort IN (E), NY (T), PA (E)
NYCO Nymphoides cordata (Elliot) Fernald little floatingheart MD (E), PA (T)
BOMO2 Botrychium mormo W.H. Wagner little goblin moonwort MI (T), WI (E)
BOSI Botrychium simplex E. Hitchc. little grapefern CT (SC), IL (E), IN (E), IA (T), MD (E, X), NY (EV), OH (E), RI (SC), WA (S)
CAVI5 Carex viridula Michx. little green sedge CT (E), IL (T), PA (E)
SPTU Spiranthes tuberosa Raf. little lady's tresses FL (T), NY (EV), PA (X), RI (E)
SPTUG Spiranthes tuberosa Raf. var. grayi (Ames) Fernald CT (SC)
MAHEH2 Mammillaria heyderi Muehlenpf. var. heyderi little nipple cactus
MAGUA Mammillaria gummifera Engelm. var. applanata (Engelm.) L.D. Benson AZ (SR)
MAME6 Mammillaria meiacantha Engelm. little nipple cactus
MAHEM2 Mammillaria heyderi Muehlenpf. var. meiacantha (Engelm.) L.D. Benson little nipple cactus AZ (SR)
SASE9 Sagittaria secundifolia Kral Little River arrowhead T GA (T)
ALSP2 Allium speculae Ownbey & Aase Little River Canyon onion GA (T)
ARED Arctostaphylos edmundsii J.T. Howell Little Sur manzanita
AREDP Arctostaphylos edmundsii J.T. Howell var. parvifolia J.B. Roof CA (R)
HEAR6 Hexastylis arifolia (Michx.) Small littlebrownjug FL (T)
SCOL2 Scleria oligantha Michx. littlehead nutrush OH (E)
LYWA Lysiloma watsonii Rose littleleaf false tamarind
LYMIT Lysiloma microphyllum Benth. var. thornberi (Britton & Rose) Isely AZ (SR)
PYBR Pyxidanthera brevifolia Wells littleleaf pixiemoss
PYBAB Pyxidanthera barbulata Michx. var. brevifolia (Wells) H.E. Ahles NC (E)
CAMI5 Carex microdonta Torr. & Hook. littletooth sedge FL (E)
PYAS Pyrola asarifolia Michx. liverleaf wintergreen IN (E), IA (E), ME (SC), NH (E), NY (T), VT (T)
PYASA Pyrola asarifolia Michx. ssp. asarifolia liverleaf wintergreen
PYASP Pyrola asarifolia Michx. var. purpurea (Bunge) Fernald MA (E)
MIJU Mimulus jungermannioides Suksd. liverwort monkeyflower WA (PX)
CALI Carex livida (Wahlenb.) Willd. livid sedge ME (SC), VT (T)
CALIR Carex livida (Wahlenb.) Willd. var. radicaulis Paine livid sedge MA (E), NY (E)
SACE Saururus cernuus L. lizard's tail CT (E), RI (E)
ECMA2 Echinomastus mariposensis Hester Lloyd's fishhook cactus T
NEMA2 Neolloydia mariposensis (Hester) L.D. Benson TX (T)
ECRO2 Echinocereus ×roetteri (Engelm.) Rümpler [coccineus × dasyacanthus] Lloyd's hedgehog cactus
ECLL Echinocereus ×lloydii Britton & Rose (pro sp.) NM (E)
ASPI Asplenium pinnatifidum Nutt. lobed spleenwort MD (E), NJ (E), PA (R), WI (T)
ERCO39 Eryngium constancei Sheikh Loch Lomond eryngo E CA (E)
DRCE Dryopteris celsa (Wm. Palmer) Knowlt., Palmer & Pollard ex Small log fern IL (E), IN (X), MD (T), MI (T), NY (E), OH (E), PA (E)
ERCA7 Eriodictyon capitatum Eastw. Lompoc yerba santa E CA (R)
ERAL Eremocrinum albomarginatum (M.E. Jones) M.E. Jones lonely lily AZ (SR)
PHCO24 Phegopteris connectilis (Michx.) Watt long beechfern NY (EV), RI (T)
THPH Thelypteris phegopteris (L.) Slosson IL (E), IA (E), TN (SC)
BYLU Byrsonima lucida (Mill.) DC. Long Key locustberry FL (T)
ASJO Astragalus johannis-howellii Barneby Long Valley milkvetch CA (R)
CALO11 Cardamine longii Fernald Long's bittercress CT (SC), ME (T), MD (E), MA (E), NH (T), NJ (E), NY (T)
SCLO Scirpus longii Fernald Long's bulrush CT (SC), ME (T), MA (T), NJ (E), RI (E)
JULO2 Juncus longii Fernald Long's rush MD (E)
CALO5 Carex longii Mack. Long's sedge OH (E)
COROR Coryphantha robustispina (Schott ex Engelm.) Britton & Rose ssp. robustispina long-tubercle beehive cactus
COSCR Coryphantha scheeri (Muehlenpf.) L.D. Benson var. robustispina (Schott ex Engelm.) L.D. Benson E AZ (HS)
CAMA11 Carex macrochaeta C.A. Mey. longawn sedge WA (S)
SAAU2 Sagittaria australis (J.G. Sm.) Small longbeak arrowhead IN (R), NJ (E)
RHSC5 Rhynchospora scirpoides (Torr.) A. Gray longbeak beaksedge CT (E), MD (T), MA (SC), NY (R), RI (E)
PSSC2 Psilocarya scirpoides Torr. IN (T), MI (T), WI (T)
RALO2 Ranunculus longirostris Godr. longbeak buttercup PA (T), TN (E)
RASU Ranunculus subrigidus W. Drew CT (SC)
CALOL Calochortus longebarbatus S. Watson var. longebarbatus longbeard mariposa lily WA (S)
DAVI6 Dactylorhiza viridis (L.) R.M. Bateman, A.M. Pridgeon & M.W. Chase longbract frog orchid
COVI6 Coeloglossum viride (L.) Hartm. AZ (SR), MD (E), NY (EV), OH (E)
COVIV Coeloglossum viride (L.) Hartm. var. virescens (Muhl. ex Willd.) Luer CT (SC), IN (T), KY (H), RI (T), TN (E)
TRBR Tradescantia bracteata Small longbract spiderwort IL (T), MI (PREX)
BABRL2 Baptisia bracteata Muhl. ex Elliot var. leucophaea (Nutt.) Kartesz & Gandhi longbract wild indigo KY (SC), TN (SC)
BALE3 Baptisia leucophaea Nutt. MI (E)
HECA3 Helianthemum canadense (L.) Michx. longbranch frostweed KY (E), TN (PX, E)
ELCA18 Eltroplectris calcarata (Sw.) Garay & H.R. Sweet longclaw orchid FL (E)
HELO5 Heuchera longiflora Rydb. longflower alumroot OH (PRX)
HELOA Heuchera longiflora Rydb. var. aceroides (Rydb.) Rosend., Butters & Lakela TN (SC)
MALU Macradenia lutescens R. Br. longgland orchid FL (E)
CACO8 Carex comosa Boott longhair sedge KY (H), TN (T), WA (S)
ARLO5 Arnica lonchophylla Greene longleaf arnica MN (T)
ERLOG Eriogonum longifolium Nutt. var. gnaphalifolium Gandog. longleaf buckwheat T
ERFL11 Eriogonum floridanum Small FL (E)
ISLO2 Isodendrion longifolium A. Gray longleaf isodendrion T
STLO Stellaria longifolia Muhl. ex Willd. longleaf starwort KY (SC), TN (E)
HOLO Houstonia longifolia Gaertn. longleaf summer bluet CT (E), ME (SC), MA (E)
HELO7 Hedyotis longifolia (Gaertn.) Hook. RI (H)
PECA7 Penstemon calycosus Small longsepal beardtongue MI (T)
ILLO2 Iliamna longisepala (Torr.) Wiggins longsepal wild hollyhock WA (S)
DICO5 Dicerandra cornutissima R.B. Huck longspur balm E FL (E)
AQLO Aquilegia longissima A. Gray longspur columbine AZ (SR)
DRJU2 Draba juvenilis Kom. longstalk draba
DRLO2 Draba longipes Raup WA (S)
ILCO2 Ilex collina Alexander longstalk holly NC (T), VA (E)
NECO6 Nemopanthus collinus (Alexander) R. Clark TN (SC)
CAPE4 Carex pedunculata Muhl. ex Willd. longstalk sedge IN (R), MD (E), RI (T)
STLO2 Stellaria longipes Goldie longstalk starwort NY (T)
OSLO Osmorhiza longistylis (Torr.) DC. longstyle sweetroot RI (T)
MYLA2 Myriophyllum laxum Shuttlw. ex Chapm. loose watermilfoil GA (T), NC (T)
CARA5 Carex rariflora (Wahlenb.) Sm. looseflower alpine sedge ME (PX)
POLA3 Poa laxiflora Buckley looseflower bluegrass WA (T)
JUOV Justicia ovata (Walter) Lindau looseflower water-willow IL (E)
RHCH2 Rhynchospora chalarocephala Fernald & Gale loosehead beaksedge TN (T)
JUSE Juncus secundus P. Beauv. ex Poir. lopsided rush IN (E), ME (SC), NH (E), OH (T), VT (E)
ORLU Orobanche ludoviciana Nutt. Louisiana broomrape IL (T), IN (T), KY (H), OH (PRX), TN (SC), WI (E)
TELU Tetragonotheca ludoviciana (Torr. & A. Gray) A. Gray ex H.M. Hall Louisiana nerveray AR (E)
ISLO Isoetes louisianensis Thieret Louisiana quillwort E
CALO6 Carex louisianica L.H. Bailey Louisiana sedge NJ (E), OH (E)
CASP14 Calystegia spithamaea (L.) Pursh low false bindweed CT (SC), ME (T), MA (E), NJ (E), VT (T)
CASPS2 Calystegia spithamaea (L.) Pursh ssp. spithamaea low false bindweed
COSP6 Convolvulus spithamaeus L. NH (T)
HEPR Helianthemum propinquum E.P. Bicknell low frostweed CT (E), RI (SC), TN (SC)
CACO10 Carex concinna R. Br. low northern sedge WI (T)
NEHU2 Neotorularia humilis (C.A. Mey.) Hedge & J. Léonard low northern-rockcress
BRHU Braya humilis (C.A. Mey.) B.L. Rob. MI (T), VT (T)
SCVE2 Scleria verticillata Muhl. ex Willd. low nutrush AR (T), CT (SC), IA (T), MD (E), MN (T), NJ (E), NY (E), PA (E), TN (SC)
EURA10 Eurybia radula (Aiton) G.L. Nesom low rough aster
ASRA8 Aster radula Aiton CT (E), KY (E), MD (E), NJ (E), NY (E)
AMHU2 Amelanchier humilis Wiegand low serviceberry IN (E), PA (E)
RAPU Ranunculus pusillus Poir. low spearwort IN (E), OH (E), PA (E)
KYPU Kyllinga pumila Michx. low spikesedge MD (E)
CYTE2 Cyperus tenuifolius (Steud.) Dandy NJ (E)
CASO Carex socialis Mohlenbr. & Schwegm. low woodland sedge IN (R)
VAAN Vaccinium angustifolium Aiton lowbush blueberry IA (T)
CYPR4 Cystopteris protrusa (Weath.) Blasdell lowland bladderfern NY (E)
RORA Rotala ramosior (L.) Koehne lowland rotala CT (E), MA (E), MN (T), NY (T), PA (R), RI (E), WA (S)
LYHY Lysimachia hybrida Michx. lowland yellow loosestrife MD (T), NY (E), PA (T)
AGLU Ageratina luciae-brauniae (Fernald) King & H. Rob. Lucy Braun's snakeroot KY (SC), TN (T)
LOSC60 Lobaria scrobiculata (Scop.) DC. lung lichen MN (E)
LEEL2 Lepanthes eltoroensis Stimson Luquillo Mountain babyboot orchid E PR (E)
EUHA4 Eugenia haematocarpa Alain Luquillo Mountain stopper E
PELY4 Pentachaeta lyonii A. Gray Lyon's pygmydaisy E CA (E)
ARLY2 Arabis lyrata L. lyrate rockcress OH (T), VT (T)
ARLY5 Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz MA (E)
LELY Lesquerella lyrata Rollins lyreleaf bladderpod T
SALY2 Salvia lyrata L. lyreleaf sage NY (E)
ARMA33 Arabis macdonaldiana Eastw. MacDonald rockcress E CA (E)
MAHEM Mammillaria heyderi Muehlenpf. var. macdougalii (Rose) L.D. Benson Macdougal's nipple cactus
MAGU Mammillaria gummifera Engelm. p.p. AZ (SR)
MAGUM Mammillaria gummifera Engelm. var. macdougalii (Rose) L.D. Benson AZ (SR)
MIMA2 Mirabilis macfarlanei Constance & Rollins MacFarlane's four o'clock T OR (E)
RAMA2 Ranunculus macounii Britton Macoun's buttercup MI (T)
PSMA11 Pseudognaphalium macounii (Greene) Kartesz Macoun's cudweed
GNMA Gnaphalium macounii Greene IN (X), NJ (E)
CACAM Calamagrostis canadensis (Michx.) P. Beauv. var. macouniana (Vasey) Stebbins Macoun's reedgrass KY (E)
SPPY2 Sporobolus pyramidatus (Lam.) Hitchc. Madagascar dropseed AR (T)
PAMA20 Parmotrema madagascariaceum (Hue) Hale Madagascar parmotrema lichen OH (E)
ERMA8 Erigeron maguirei Cronquist Maguire's fleabane T
ASCOM Astragalus cobrensis A. Gray var. maguirei Kearney Maguire's milkvetch AZ (SR)
PELIM Penstemon linarioides A. Gray ssp. maguirei D.D. Keck Maguire's penstemon AZ (SR)
PRCUM Primula cusickiana (A. Gray) A. Gray var. maguirei (L.O. Williams) N.H. Holmgren & S. Kelso Maguire's primrose
PRMA7 Primula maguirei L.O. Williams T
ERRE5 Erythronium revolutum Sm. mahogany fawnlily WA (S)
PHRU Phoradendron rubrum (L.) Griseb. mahogany mistletoe FL (E)
THCO2 Thalictrum coriaceum (Britton) Small maid of the mist PA (E), TN (T)
COPA3 Collinsia parviflora Lindl. maiden blue eyed Mary MI (T)
CRRH Crossopetalum rhacoma Crantz maidenberry FL (T)
PAHE2 Panicum hemitomon Schult. maidencane TN (SC)
ASTR2 Asplenium trichomanes L. maidenhair spleenwort MN (T), NY (EV), RI (SC)
PESA6 Peucedanum sandwicense Hillebr. makou T
DRFI2 Dryopteris filix-mas (L.) Schott male fern ME (E), VT (T)
LYLI Lyonia ligustrina (L.) DC. maleberry OH (PRX)
AMCA8 Amsinckia carinata A. Nelson & J.F. Macbr. Malheur Valley fiddleneck OR (T)
STMA5 Stephanomeria malheurensis Gottlieb Malheur wirelettuce E OR (E)
IPPA Ipomoea pandurata (L.) G. Mey. man of the earth MI (T), NY (E)
RHME3 Rhynchospora megaplumosa Bridges & Orzell Manatee beaksedge FL (E)
HIMA2 Hippomane mancinella L. manchineel FL (E)
AQMI Aquilegia micrantha Eastw. Mancos columbine AZ (SR)
ASHU Astragalus humillimus A. Gray Mancos milkvetch E NM (E)
PSLO2 Psidium longipes (Berg) McVaugh mangroveberry FL (T)
CAMA33 Carex manhartii Bryson Manhart's sedge GA (T), TN (E)
HUMA Huperzia mannii (Hillebr.) Kartesz & Gandhi Mann's clubmoss E
CYMA12 Cyanea mannii (Brigham) Hillebr. Mann's cyanea E
PHMA12 Phyllostegia mannii Sherff Mann's phyllostegia E
CYLA3 Cyperus lancastriensis Porter ex A. Gray manyflower flatsedge IL (E), NJ (E), OH (E)
GEMU Geranium multiflorum A. Gray manyflower geranium E
CAMU10 Calopogon multiflorus Lindl. manyflower grasspink FL (E), NC (E)
HYUM Hydrocotyle umbellata L. manyflower marshpennywort CT (E), OH (E), PA (X)
CAPL6 Carex pluriflora Hultén manyflower sedge WA (S)
NALEP2 Navarretia leucocephala Benth. ssp. plieantha (H. Mason) Day manyflowered navarretia E CA (E)
LUPO Ludwigia polycarpa Short & Peter manyfruit primrose-willow CT (SC), MA (E), PA (E), VT (E)
CASY Carex sychnocephala Carey manyhead sedge NY (E), WA (S)
CYPO Cyperus polystachyos Rottb. manyspike flatsedge NJ (E), PA (X)
CYCY3 Cyrtandra cyaneoides Rock mapele E
CHSI2 Chenopodium simplex (Torr.) Raf. mapleleaf goosefoot
CHGI2 Chenopodium gigantospermum Aellen MD (E)
QUAC2 Quercus acerifolia (Palmer) Stoynoff & Hess mapleleaf oak AR (T)
DUCYM Dudleya cymosa (Lem.) Britton & Rose ssp. marcescens Moran marcescent dudleya T CA (R)
DRMA4 Dryopteris marginalis (L.) A. Gray marginal woodfern IA (T), MN (T), NY (EV)
LYMA7 Lycopodiella margueritiae J.G. Bruce, W.H. Wagner & Beitel Marguerite's clubmoss MI (T), OH (E)
NATA3 Navarretia tagetina Greene marigold pincushionplant WA (T)
HECO12 Hesperolinon congestum (A. Gray) Small Marin dwarf-flax T CA (T)
CIPU5 Cistanthe pulchella (Eastw.) Hershkovitz Mariposa pussypaws
CAPU28 Calyptridium pulchellum (Eastw.) Hoover T
CEMA Ceanothus maritimus Hoover maritime ceanothus CA (R)
MACA9 Matelea carolinensis (Jacq.) Woodson maroon Carolina milkvine KY (E), MD (E)
DOCOB Downingia concolor Greene var. brevior McVaugh maroonspot calicoflower CA (E)
TRPA28 Triglochin palustris L. marsh arrowgrass
TRPA6 Triglochin palustre L., orth. var. IL (T), IN (T), IA (T), NY (T), PA (X), RI (H)
CAAP2 Campanula aparinoides Pursh marsh bellflower TN (T)
SEPA10 Setaria parviflora (Poir.) Kerguélen marsh bristlegrass MA (SC)
SEGE Setaria geniculata (Wild.) P. Beauv., nom. illeg. IN (E), RI (SC)
LORO Lomatogonium rotatum (L.) Fr. ex Fernald marsh felwort ME (T)
FICA4 Fimbristylis castanea (Michx.) Vahl marsh fimbry NY (T)
CYPS Cyperus pseudovegetus Steud. marsh flatsedge IN (R), NJ (E)
SECO2 Senecio congestus (R. Br.) DC. marsh fleabane MI (PREX)
PAPA8 Parnassia palustris L. marsh grass of Parnassus MI (T), WI (T)
PAPAT Parnassia palustris L. var. tenuis Wahlenb. marsh grass of Parnassus
PAPAN Parnassia palustris L. var. neogaea Fernald WA (S)
EQPA Equisetum palustre L. marsh horsetail CT (SC), NH (T), NY (T), VT (T)
SPOD Spiranthes odorata (Nutt.) Lindl. marsh lady's tresses KY (E), MD (E, X), TN (E)
ASPYL Astragalus pycnostachyus A. Gray var. lanosissimus (Rydb.) Munz & McBurney marsh milkvetch E
LAPA4 Lathyrus palustris L. marsh pea KY (T), MD (E, X), PA (E), TN (SC), VT (T)
SADO Sabatia dodecandra (L.) Britton, Sterns & Poggenb. marsh rose gentian CT (SC)
ARPA7 Arenaria paludicola B.L. Rob. marsh sandwort E CA (E), WA (PX)
CAHO8 Carex hormathodes Fernald marsh straw sedge NY (T)
VIPA4 Viola palustris L. marsh violet ME (E), NH (T)
EPPA Epilobium palustre L. marsh willowherb RI (T)
ARPE8 Aristolochia pentandra Jacq. Marsh's dutchman's pipe FL (E)
CHHU Chenopodium humile Hook. marshland goosefoot ME (T)
CHMA14 Chrysopsis mariana (L.) Elliot Maryland goldenaster PA (E), RI (T)
HIGR5 Hieracium greenii Porter & Britton Maryland hawkweed
HITR5 Hieracium traillii Greene PA (E)
RHMA Rhexia mariana L. Maryland meadowbeauty MA (E), PA (E)
RHMAI Rhexia mariana L. var. interior (Pennell) Kral & Bostick Maryland meadowbeauty
RHIN9 Rhexia interior Pennell NJ (E)
RHMAM2 Rhexia mariana L. var. mariana Maryland meadowbeauty IN (E), MI (T)
POMA8 Polygala mariana Mill. Maryland milkwort TN (SC)
SAMA2 Sanicula marilandica L. Maryland sanicle WA (S)
CEMA3 Ceanothus masonii McMinn Mason's ceanothus CA (R)
MURI Muhlenbergia richardsonis (Trin.) Rydb. mat muhly ME (T), MI (T)
CELO3 Cenchrus longispinus (Hack.) Fernald mat sandbur ME (T), NH (T)
GOEL Goetzea elegans Wydler mata buey E PR (E)
BOMA2 Botrychium matricariifolium (A. Braun ex Dowell) A. Braun ex W.D.J. Koch matricary grapefern IL (E), IN (T), IA (E), KY (E), NY (EV), RI (SC), TN (SC)
GRPA11 Grusonia parishii (Orcutt) Pinkava matted cholla
OPEM2 Opuntia emoryi auct. non Engelm. AZ (SR)
OPPA Opuntia parishii Orcutt AZ (SR), NV (CY)
CHSE4 Chamaesyce serpens (Kunth) Small matted sandmat
EUSE4 Euphorbia serpens Kunth IN (X), OH (E)
ELIN Eleocharis intermedia Schult. matted spikerush MD (E), MA (T), PA (T), TN (SC)
DIME2 Dichanthelium meridionale (Ashe) Freckmann matting rosette grass
PAME7 Panicum meridionale Ashe OH (T)
ACSPR2 Achyranthes splendens Mart. ex Moq. var. rotundata Hillebr. Maui chaff flower E
HEAR10 Hesperomannia arbuscula Hillebr. Maui island-aster E
LIKA Lipochaeta kamolensis O. Deg. & Sherff Maui nehe E
REMA2 Remya mauiensis Hillebr. Maui remya E
TEAR3 Tetramolopium arenarium (A. Gray) Hillebr. Maui tetramolopium E
LYLY Lysimachia lydgatei Hillebr. Maui yellow loosestrife E
MIMA6 Mitracarpus maxwelliae Britton & P. Wilson Maxwell's girdlepod E PR (E)
POPE Podophyllum peltatum L. mayapple FL (E)
SAMA12 Salix maccalliana Rowlee McCalla's willow WA (S)
FLMA Flaveria macdougalii Theroux, Pinkava & Keil Mcdougall's yellowtops AZ (SR)
CYMC Cyanea mceldowneyi Rock McEldowney's cyanea E
AGUN2 Agave univittata Haw. McKelvey's century plant
AGMC Agave mckelveyana Gentry, nom. nud. AZ (SR)
POCO6 Polygonatum cobrense (Woot. & Standl.) R.R. Gates McKittrick's Solomon's seal AZ (SR)
ASME Asclepias meadii Torr. ex A. Gray Mead's milkweed T IL (E), IN (RI), IA (E), MO (E)
CAME2 Carex meadii Dewey Mead's sedge NY (E), PA (E)
OEPIS Oenothera pilosella Raf. ssp. sessilis (Pennell) Straley meadow evening primrose AR (T)
ALCA3 Allium canadense L. meadow garlic ME (SC), NH (E), VT (T)
EQPR Equisetum pratense Ehrh. meadow horsetail CT (SC), IL (T), NH (T), NJ (E), NY (T)
AEPR Aeschynomene pratensis Small meadow jointvetch FL (E)
CAPR7 Carex praticola Rydb. meadow sedge ME (PX)
SEAP Selaginella apoda (L.) Spring meadow spikemoss IN (E), ME (E)
SAPE5 Salix petiolaris Sm. meadow willow CT (SC), OH (T), PA (E)
ZIAP Zizia aptera (A. Gray) Fernald meadow zizia CT (E), IN (R), MI (T), RI (H)
MECO Meehania cordata (Nutt.) Britton Meehan's mint PA (E), TN (T)
FLNE Flueggea neowawraea W.J. Hayden mehamehame E
MAFA Malacothamnus fasciculatus (Nutt. ex Torr. & A. Gray) Greene Mendocino bushmallow
MAFAN Malacothamnus fasciculatus (Nutt. ex Torr. & A. Gray) Greene var. nesioticus (B.L. Rob.) Kearney E CA (E)
CHHO2 Chorizanthe howellii Goodman Mendocino spineflower E CA (T)
PHME14 Phemeranthus mengesii (W. Wolf) Kiger Menges' fameflower
TAME Talinum mengesii W. Wolf TN (T)
SAME6 Sanguisorba menziesii Rydb. Menzies' burnet WA (S)
ERME5 Erysimum menziesii (Hook.) Wettst. Menzies' wallflower E CA (E)
CLLI Clarkia lingulata F.H. Lewis & M.E. Lewis Merced clarkia CA (E)
EUME4 Euphorbia mercurialina Michx. mercury spurge KY (T)
ISTE Isoetes tegetiformans Rury Merlin's grass E GA (E)
SCME4 Sclerocactus mesae-verdae (Boissev. & C. Davidson) L.D. Benson Mesa Verde fishhook cactus T NM (E)
PORIM Polygala rimulicola Steyerm. var. mescalerorum T. Wendt & T.K. Todsen Mescalero milkwort NM (E)
STALA Streptanthus albidus Greene ssp. albidus Metcalf Canyon jewelflower E
ALAM3 Alvaradoa amorphoides Liebm. Mexican alvaradoa FL (E)
FRME2 Fremontodendron mexicanum Davidson Mexican flannelbush E CA (R)
PRME Prunus mexicana S. Watson Mexican plum OH (PRX)
SEME4 Senna mexicana (Jacq.) Irwin & Barneby Mexican senna FL (T)
MIBI2 Milla biflora Cav. Mexican star AZ (SR)
VAME2 Vanilla mexicana Mill. Mexican vanilla FL (E)
RIEC Ribes echinellum (Coville) Rehder Miccosukee gooseberry T FL (E)
CRMIE Croton michauxii G.L. Webster var. ellipticus (Willd.) B.W. van Ee & P.E. Berry Michaux's croton
CRWI5 Croton willdenowii G.L. Webster Willdenow's croton
CREL2 Crotonopsis elliptica Willd. CT (SC), IN (E), PA (X)
LEUN Leavenworthia uniflora (Michx.) Britton Michaux's gladecress IN (E), OH (T)
SAMI5 Saxifraga michauxii Britton Michaux's saxifrage KY (T)
CAMI15 Carex michauxiana Boeckeler Michaux's sedge MA (E), WI (T)
MIMI2 Minuartia michauxii (Fenzl) Farw. Michaux's stitchwort MD (T), MA (T)
MIMIM Minuartia michauxii (Fenzl) Farw. var. michauxii Michaux's stitchwort
ARST8 Arenaria stricta Michx. IN (R), NJ (E), RI (E)
LIMI9 Lilium michiganense Farw. Michigan lily NY (E), TN (T)
MIGLM Mimulus glabratus Kunth var. michiganensis (Pennell) Fassett Michigan monkeyflower E MI (E)
STMI14 Stenorrhynchos michuacanum (Llave & Lex.) Schltr. Michuacan lady orchid
SPMI2 Spiranthes michuacana (Llave & Lex.) Hemsl. AZ (SR)
AGNE5 Agalinis neoscotica (Greene) Fernald Middleton false foxglove ME (T)
ERME15 Erythronium mesochoreum Knerr midland fawnlily IL (T)
CAME13 Carex mesochorea Mack. midland sedge MA (E), NY (E), OH (T)
MIMIE Mielichhoferia mielichhoferiana (Funck) Loeske var. elongata (Hoppe & Hornsch. ex Hook.) Wijk & Margad. Mielichhofer's copper moss
MIEL5 Mielichhoferia elongata (Hoppe & Hornsch. ex Hook.) Nees & Hornsch TN (SC)
DRDI Drypetes diversifolia Krug & Urb. milkbark FL (E)
BOMI Botrychium minganense Vict. Mingan moonwort NY (E)
ERPR6 Erythronium propullans A. Gray Minnesota fawnlily E MN (E)
MEPI2 Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. minniebush PA (R), TN (SC)
LEPE Lemna perpusilla Torr. minute duckweed IN (X), NJ (E), NY (E)
RALA2 Ranunculus laxicaulis (Torr. & A. Gray) Darby Mississippi buttercup IN (E)
ESMI3 Escobaria missouriensis (Sweet) D.R. Hunt Missouri foxtail cactus
COMI5 Coryphantha missouriensis (Sweet) Britton & Rose AZ (SR)
SOMI2 Solidago missouriensis Nutt. Missouri goldenrod MI (T)
RIMI Ribes missouriense Nutt. Missouri gooseberry NJ (E), OH (E), PA (E)
VEMI2 Vernonia missurica Raf. Missouri ironweed OH (E)
CHALM2 Chenopodium album L. var. missouriense (Aellen) I.J. Bassett & C.W. Crompton Missouri lambsquarters NY (E)
RUMI Rudbeckia missouriensis Engelm. ex C.L. Boynt. & Beadle Missouri orange coneflower IL (E)
SAER Salix eriocephala Michx. Missouri River willow FL (E)
SACO24 Salix cordata Muhl., nom. illeg., non Salix cordata Michx. IN (T)
VIMI3 Viola missouriensis Greene Missouri violet OH (E)
PRMI Primula mistassinica Michx. Mistassini primrose IL (E), ME (SC), NY (T), VT (T)
RHBA2 Rhipsalis baccifera (Sol. ex J.S. Muell.) Stearn mistletoe cactus FL (E)
CAMI18 Carex mitchelliana M.A. Curtis Mitchell's sedge NY (T), PA (E), RI (SC)
CYAC3 Cypripedium acaule Aiton moccasin flower GA (U), IL (E), NY (EV), TN (CE, E)
STGR6 Stachydeoma graveolens (Chapm. ex A. Gray) Small mock pennyroyal FL (E)
PAQU7 Packera quaerens (Greene) W.A. Weber & Á. Löve Mogollon Mountain ragwort
SEQU2 Senecio quaerens Greene AZ (SR)
MAMO3 Marshallia mohrii Beadle & F.E. Boynt. Mohr's Barbara's buttons T GA (T)
ECMO Echinocereus mojavensis (Engelm. & Bigelow) Rümpler Mojave kingcup cactus
ECTRM2 Echinocereus triglochidiatus Engelm. var. mojavensis (Engelm. & Bigelow) L.D. Benson AZ (SR)
ASMOH Astragalus mohavensis S. Watson var. hemigyrus (Clokey) Barneby Mojave milkvetch NV (FP)
ECPO6 Echinocereus polyacanthus Engelm. Mojave mound cactus AZ (SR)
DEMO5 Deinandra mohavensis (D.D. Keck) B.G. Baldw. Mojave tarweed
HEMO5 Hemizonia mohavensis D.D. Keck CA (E)
YUSC2 Yucca schidigera Roezl ex Ortgies Mojave yucca AZ (SR, HR), NV (CY)
CYPR8 Cyanea procera Hillebr. Molokai cyanea E
CAMO15 Canavalia molokaiensis O. Deg., I. Deg. & Sauer Molokai jackbean E
BRRO Brighamia rockii H. St. John Molokai ohaha E
PHHI5 Phyllostegia hirsuta Benth. Molokai phyllostegia E
KOCO2 Kokia cookei O. Deg. Molokai treecotton E
DIMO4 Diplazium molokaiense W.J. Rob. Molokai twinsorus fern E
ASMO9 Astragalus monoensis Barneby Mono milkvetch CA (R)
MAGR7 Marshallia grandiflora Beadle & F.E. Boynt. Monongahela Barbara's buttons KY (E), MD (E, X), PA (E), TN (E)
POCA27 Polystichum calderonense Proctor Monte Guilarte hollyfern E PR (E)
CASA20 Castilleja salsuginosa N.H. Holmgren Monte Neva Indian paintbrush NV (FP)
TRTR Trifolium trichocalyx A. Heller Monterey clover E CA (E)
CHPUP3 Chorizanthe pungens Benth. var. pungens Monterey spineflower T
CRAR6 Crataegus arborea Beadle Montgomery hawthorn IN (E)
ASLIM Astragalus limnocharis Barneby var. montii (S.L. Welsh) Isely Monti's milkvetch