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Results for Scientific Name = Penstemon
621 records returned

Click on an accepted name below to view its PLANTS Profile with all synonyms, distribution map, more information, and Web links if available. Please use the State Search to generate fully synonymized plant lists. Synonyms are indented beneath accepted counterparts.

Symbol Scientific Name Common Name Photos
ALPE11 Aliciella penstemonoides (M.E. Jones) J.M. Porter Black Canyon gilia
GIPE Gilia penstemonoides M.E. Jones  
KEANA Keckiella antirrhinoides (Benth.) Straw ssp. antirrhinoides snapdragon penstemon indicator that this symbol has images (2)
PEAN10 Penstemon antirrhinoides Benth.  
KEANM Keckiella antirrhinoides (Benth.) Straw ssp. microphylla (A. Gray) Straw snapdragon penstemon indicator that this symbol has images (1)
PEANM Penstemon antirrhinoides Benth. ssp. microphyllus (A. Gray) D.D. Keck  
PEMI12 Penstemon microphyllus A. Gray  
KEBRB Keckiella breviflora (Lindl.) Straw ssp. breviflora bush beardtongue indicator that this symbol has images (4)
PEBR15 Penstemon breviflorus Lindl.  
KEBRG Keckiella breviflora (Lindl.) Straw ssp. glabrisepala (D.D. Keck) Straw bush beardtongue indicator that this symbol has images (4)
PEBRG Penstemon breviflorus Lindl. ssp. glabrisepalus D.D. Keck  
KECO Keckiella cordifolia (Benth.) Straw heartleaf keckiella indicator that this symbol has images (7)
PECO30 Penstemon cordifolius Benth.  
KECO2 Keckiella corymbosa (Benth. ex A. DC.) Straw redwood keckiella indicator that this symbol has images (4)
PECO25 Penstemon corymbosus Benth. ex A. DC.  
KELE Keckiella lemmonii (A. Gray) Straw Lemmon's keckiella
PELE13 Penstemon lemmonii A. Gray  
KEROJ Keckiella rothrockii (A. Gray) Straw ssp. jacintensis (Abrams) Straw Rothrock's keckiella
PEROJ Penstemon rothrockii A. Gray ssp. jacintensis (Abrams) D.D. Keck  
KEROR Keckiella rothrockii (A. Gray) Straw ssp. rothrockii Rothrock's keckiella indicator that this symbol has images (3)
PERO8 Penstemon rothrockii A. Gray  
KETES Keckiella ternata (Torr. ex A. Gray) Straw ssp. septentrionalis (Munz & I.M. Johnst.) Straw scarlet keckiella
PETES Penstemon ternatus Torr. ex A. Gray ssp. septentrionalis (Munz & I.M. Johnst.) D.D. Keck  
KETET Keckiella ternata (Torr. ex A. Gray) Straw ssp. ternata scarlet keckiella
PETE15 Penstemon ternatus Torr. ex A. Gray  
NONE3 Nothochelone nemorosa (Douglas ex Lindl.) Straw woodland beardtongue indicator that this symbol has images (5)
PENE8 Penstemon nemorosus (Douglas ex Lindl.) Trautv.  
PENST Penstemon Schmidel beardtongue indicator that this symbol has images (3)
PEHY11 Penstemon ×hybridus hort. ex Groenl. & Rümpler, nom. inval.  
PEAB Penstemon abietinus Pennell firleaf beardtongue indicator that this symbol has images (1)
PEAB2 Penstemon absarokensis Evert Absaroka Range beardtongue
PEAC3 Penstemon acaulis L.O. Williams stemless beardtongue indicator that this symbol has images (2)
PEAC Penstemon acuminatus Douglas ex Lindl. sharpleaf penstemon indicator that this symbol has images (8)
PEACA Penstemon acuminatus Douglas ex Lindl. var. acuminatus sharpleaf penstemon indicator that this symbol has images (3)
PEACL Penstemon acuminatus Douglas ex Lindl. var. latebracteatus N.H. Holmgren sharpleaf penstemon indicator that this symbol has images (4)
PEAL10 Penstemon alamosensis Pennell & Nisbet Los Alamos beardtongue indicator that this symbol has images (7)
PEAL11 Penstemon albertinus Greene Alberta beardtongue
PEAL2 Penstemon albidus Nutt. white penstemon indicator that this symbol has images (2)
PEAL3 Penstemon albomarginatus M.E. Jones whitemargin beardtongue indicator that this symbol has images (5)
PEAL4 Penstemon alluviorum Pennell lowland beardtongue
PELAA4 Penstemon laevigatus Aiton ssp. alluviorum (Pennell) Benn.  
PEAM Penstemon ambiguus Torr. gilia beardtongue indicator that this symbol has images (4)
PEAMA Penstemon ambiguus Torr. var. ambiguus gilia beardtongue
PEAML2 Penstemon ambiguus Torr. var. laevissimus (D.D. Keck) N.H. Holmgren pink plains beardtongue indicator that this symbol has images (6)
PEAML Penstemon ambiguus Torr. ssp. laevissimus D.D. Keck  
PEAM5 Penstemon ammophilus N.H. Holmgren & L.M. Shultz sandloving penstemon
PEAN3 Penstemon anguineus Eastw. Siskiyou beardtongue indicator that this symbol has images (9)
PERAM Penstemon rattanii A. Gray var. minor A. Gray  
PEAN4 Penstemon angustifolius Nutt. ex Pursh broadbeard beardtongue indicator that this symbol has images (12)
PEANA2 Penstemon angustifolius Nutt. ex Pursh var. angustifolius broadbeard beardtongue
PEANC Penstemon angustifolius Nutt. ex Pursh var. caudatus (A. Heller) Rydb. broadbeard beardtongue
PEANC2 Penstemon angustifolius Nutt. ex Pursh ssp. caudatus (A. Heller) D.D. Keck  
PECA20 Penstemon caudatus A. Heller  
PEAND Penstemon angustifolius Nutt. ex Pursh var. dulcis Neese broadbeard beardtongue
PEANV Penstemon angustifolius Nutt. ex Pursh var. venosus (D.D. Keck) N.H. Holmgren broadbeard beardtongue
PEANV3 Penstemon angustifolius Nutt. ex Pursh ssp. venosus D.D. Keck  
PEVE6 Penstemon venosus (D.D. Keck) Reveal  
PEANV2 Penstemon angustifolius Nutt. ex Pursh var. vernalensis N.H. Holmgren broadbeard beardtongue
PEAR3 Penstemon arenarius Greene Nevada sanddune beardtongue indicator that this symbol has images (7)
PEMA15 Penstemon maguirei Crosswh.  
PEAR Penstemon arenicola A. Nelson sand penstemon indicator that this symbol has images (3)
PEAR2 Penstemon aridus Rydb. stiffleaf penstemon indicator that this symbol has images (4)
PEAR4 Penstemon arkansanus Pennell Arkansas beardtongue indicator that this symbol has images (1)
PEMU8 Penstemon multicaulis Pennell  
PEPAA2 Penstemon pallidus Small ssp. arkansanus (Pennell) Benn.  
PEWH3 Penstemon wherryi Pennell  
PEAT3 Penstemon attenuatus Douglas ex Lindl. sulphur penstemon
PEATA2 Penstemon attenuatus Douglas ex Lindl. var. attenuatus sulphur penstemon indicator that this symbol has images (1)
PEATM2 Penstemon attenuatus Douglas ex Lindl. var. militaris (Greene) Cronquist South Idaho penstemon
PEAS Penstemon assurgens D.D. Keck  
PEATM Penstemon attenuatus Douglas ex Lindl. ssp. militaris (Greene) D.D. Keck  
PEATP4 Penstemon attenuatus Douglas ex Lindl. var. palustris (Pennell) Cronquist sulphur beardtongue
PEATP Penstemon attenuatus Douglas ex Lindl. ssp. palustris (Pennell) D.D. Keck  
PEATP5 Penstemon attenuatus Douglas ex Lindl. var. pseudoprocerus (Rydb.) Cronquist small penstemon
PEATP2 Penstemon attenuatus Douglas ex Lindl. ssp. pseudoprocerus (Rydb.) D.D. Keck  
PEAT4 Penstemon atwoodii S.L. Welsh Kaiparowits beardtongue
PEAU2 Penstemon auriberbis Pennell Colorado beardtongue indicator that this symbol has images (5)
PEAU Penstemon australis Small Eustis Lake beardtongue indicator that this symbol has images (1)
PEAZ Penstemon azureus Benth. azure penstemon indicator that this symbol has images (6)
PEAZA Penstemon azureus Benth. ssp. angustissimus (A. Gray) D.D. Keck azure penstemon indicator that this symbol has images (5)
PEAZA3 Penstemon azureus Benth. var. angustissimus A. Gray  
PEAZA2 Penstemon azureus Benth. ssp. azureus azure penstemon indicator that this symbol has images (5)
PEAZA4 Penstemon azureus Benth. var. azureus  
PEAZP Penstemon azureus Benth. var. parvulus A. Gray  
PEPA11 Penstemon parvulus (A. Gray) Krautter  
PEBA Penstemon baccharifolius Hook. baccharisleaf beardtongue indicator that this symbol has images (3)
PEBA2 Penstemon barbatus (Cav.) Roth beardlip penstemon indicator that this symbol has images (13)
PEBAC2 Penstemon barbatus (Cav.) Roth var. coccineus hort.  
PEBAB Penstemon barbatus (Cav.) Roth ssp. barbatus beardlip penstemon
PEBAP Penstemon barbatus (Cav.) Roth var. puberulus A. Gray  
PEBAT Penstemon barbatus (Cav.) Roth ssp. torreyi (Benth.) D.D. Keck Torrey's penstemon
PEBAT3 Penstemon barbatus (Cav.) Roth var. torreyi (Benth.) A. Gray  
PETO4 Penstemon torreyi Benth.  
PEBAT2 Penstemon barbatus (Cav.) Roth ssp. trichander (A. Gray) D.D. Keck beardlip penstemon
PEBAT4 Penstemon barbatus (Cav.) Roth var. trichander A. Gray  
PEBA6 Penstemon barnebyi N.H. Holmgren White River Valley beardtongue indicator that this symbol has images (2)
PEBA7 Penstemon barrettiae A. Gray Barrett's beardtongue indicator that this symbol has images (5)
PEBI2 Penstemon bicolor (Brandegee) Clokey & D.D. Keck pinto beardtongue
PEBIB2 Penstemon bicolor (Brandegee) Clokey & D.D. Keck ssp. bicolor pinto beardtongue indicator that this symbol has images (6)
PEBIR Penstemon bicolor (Brandegee) Clokey & D.D. Keck ssp. roseus Clokey & D.D. Keck pinto beardtongue indicator that this symbol has images (7)
PEBR8 Penstemon bracteatus D.D. Keck Red Canyon beardtongue indicator that this symbol has images (1)
PEBR9 Penstemon breviculus (D.D. Keck) Nisbet & R.C. Jacks. shortstem beardtongue indicator that this symbol has images (5)
PEJAB Penstemon jamesii Benth. ssp. breviculus D.D. Keck  
PEBR17 Penstemon bryantiae D.D. Keck Bryant's beardtongue
PEBU Penstemon buckleyi Pennell Buckley's beardtongue
PECA3 Penstemon caesius A. Gray San Bernardino beardtongue indicator that this symbol has images (2)
PECA4 Penstemon caespitosus Nutt. ex A. Gray mat penstemon indicator that this symbol has images (5)
PECAC4 Penstemon caespitosus Nutt. ex A. Gray var. caespitosus mat penstemon
PECAD2 Penstemon caespitosus Nutt. ex A. Gray var. desertipicti (A. Nelson) N.H. Holmgren mat penstemon
PECAD Penstemon caespitosus Nutt. ex A. Gray ssp. desertipicti (A. Nelson) D.D. Keck  
PECAP2 Penstemon caespitosus Nutt. ex A. Gray var. perbrevis (Pennell) N.H. Holmgren mat penstemon
PECAP Penstemon caespitosus Nutt. ex A. Gray ssp. perbrevis Pennell  
PECA5 Penstemon calcareus Brandegee limestone beardtongue indicator that this symbol has images (5)
PECA6 Penstemon californicus (Munz & I.M. Johnst.) D.D. Keck California penstemon indicator that this symbol has images (7)
PECA7 Penstemon calycosus Small longsepal beardtongue indicator that this symbol has images (1)
PELAC Penstemon laevigatus Aiton ssp. calycosus (Small) Benn.  
PECA80 Penstemon campanulatus (Cav.) Willd. [excluded] bellflower beardtongue
PECAP3 Penstemon campanulatus (Cav.) Willd. f. pulchellus (Lindl.) Voss  
PECAC8 Penstemon campanulatus (Cav.) Willd. ssp. chihuahuensis Straw [excluded]
PEPU17 Penstemon pulchellus Lindl.  
PECA8 Penstemon canescens (Britton) Britton eastern gray beardtongue indicator that this symbol has images (2)
PEBR19 Penstemon brittoniorum Pennell  
PECAB Penstemon canescens (Britton) Britton var. brittoniorum (Pennell) Pennell  
PECAT Penstemon canescens (Britton) Britton var. typicus Pennell  
PECA15 Penstemon cardinalis Wooton & Standl. cardinal beardtongue indicator that this symbol has images (7)
PECAC5 Penstemon cardinalis Wooton & Standl. ssp. cardinalis cardinal beardtongue
PECAR Penstemon cardinalis Wooton & Standl. ssp. regalis (A. Nelson) Nisbet & R.C. Jacks. cardinal beardtongue indicator that this symbol has images (1)
PECA16 Penstemon cardwellii Howell Cardwell's beardtongue
PECA9 Penstemon carnosus Pennell fleshy beardtongue indicator that this symbol has images (3)
PECA17 Penstemon caryi Pennell Cary's beardtongue
PECE2 Penstemon centranthifolius (Benth.) Benth. scarlet bugler indicator that this symbol has images (7)
PECI2 Penstemon cinicola D.D. Keck ash penstemon
PECL Penstemon clevelandii A. Gray Cleveland's beardtongue
PECLC5 Penstemon clevelandii A. Gray ssp. clevelandii Cleveland's beardtongue
PECLC8 Penstemon clevelandii A. Gray var. clevelandii  
PECLC4 Penstemon clevelandii A. Gray ssp. connatus (Munz & I.M. Johnst.) D.D. Keck San Jacinto beardtongue indicator that this symbol has images (8)
PECLC6 Penstemon clevelandii A. Gray var. connatus Munz & I.M. Johnst.  
PECLM2 Penstemon clevelandii A. Gray ssp. mohavensis D.D. Keck Cleveland's beardtongue
PECLM3 Penstemon clevelandii A. Gray var. mohavensis (D.D. Keck) McMinn  
PECL5 Penstemon clutei A. Nelson Sunset Crater beardtongue indicator that this symbol has images (3)
PECO4 Penstemon cobaea Nutt. cobaea beardtongue indicator that this symbol has images (6)
PECOP2 Penstemon cobaea Nutt. var. purpureus Pennell  
PECOP3 Penstemon cobaea Nutt. ssp. purpureus (Pennell) Pennell  
PECOT Penstemon cobaea Nutt. ssp. typicus Pennell  
PECO5 Penstemon comarrhenus A. Gray dusty beardtongue indicator that this symbol has images (4)
PECO10 Penstemon compactus (D.D. Keck) Crosswh. compact penstemon
PECYC Penstemon cyananthus Hook. ssp. compactus D.D. Keck  
PECYC3 Penstemon cyananthus Hook. var. compactus (D.D. Keck) Neese  
PECO15 Penstemon concinnus D.D. Keck Tunnel Springs beardtongue
PECO6 Penstemon confertus Douglas ex Lindl. yellow penstemon indicator that this symbol has images (1)
PECO7 Penstemon confusus M.E. Jones Owens Valley beardtongue indicator that this symbol has images (7)
PECR5 Penstemon crandallii A. Nelson Crandall's beardtongue
PECRA Penstemon crandallii A. Nelson ssp. atratus D.D. Keck Crandall's beardtongue
PECRA2 Penstemon crandallii A. Nelson var. atratus (D.D. Keck) N.H. Holmgren  
PECRC Penstemon crandallii A. Nelson ssp. crandallii Crandall's beardtongue
PESU13 Penstemon suffrutescens Rydb.  
PECRG Penstemon crandallii A. Nelson ssp. glabrescens (Pennell) D.D. Keck Crandall's beardtongue
PECRP Penstemon crandallii A. Nelson ssp. procumbens (Greene) D.D. Keck Crandall's beardtongue
PECRT2 Penstemon crandallii A. Nelson ssp. taosensis (D.D. Keck) Kartesz & Gandhi Taos penstemon
PECRT3 Penstemon crandallii A. Nelson var. taosensis (D.D. Keck) Nisbet & R.C. Jacks.  
PELIT2 Penstemon linarioides A. Gray ssp. taosensis D.D. Keck  
PECR6 Penstemon ×crideri A. Nelson (pro sp.) [eatonii × pseudospectabilis] Crider beardtongue
PECU Penstemon cusickii A. Gray Cusick's beardtongue
PECY2 Penstemon cyananthus Hook. Wasatch beardtongue indicator that this symbol has images (6)
PECYC2 Penstemon cyananthus Hook. var. cyananthus Wasatch beardtongue
PECYS2 Penstemon cyananthus Hook. var. subglaber (A. Gray) N.H. Holmgren Wasatch beardtongue
PECYS Penstemon cyananthus Hook. ssp. subglaber (A. Gray) Pennell  
PEHO8 Penstemon holmgrenii S. Clark  
PECY3 Penstemon cyaneus Pennell blue penstemon indicator that this symbol has images (2)
PECY4 Penstemon cyanocaulis Payson bluestem beardtongue
PECY6 Penstemon cyathophorus Rydb. sagebrush beardtongue
PEDA Penstemon dasyphyllus A. Gray Cochise beardtongue
PEDA2 Penstemon davidsonii Greene Davidson's penstemon indicator that this symbol has images (3)
PEDAD Penstemon davidsonii Greene var. davidsonii Davidson's penstemon indicator that this symbol has images (15)
PEMED Penstemon menziesii Hook. ssp. davidsonii (Greene) Piper  
PEMET Penstemon menziesii Hook. ssp. thompsonii Pennell & D.D. Keck  
PEDAM2 Penstemon davidsonii Greene var. menziesii (D.D. Keck) Cronquist Menzies' penstemon indicator that this symbol has images (2)
PEDAM Penstemon davidsonii Greene ssp. menziesii D.D. Keck  
PEME12 Penstemon menziesii Hook. p.p.  
PEDAP Penstemon davidsonii Greene var. praeteritus Cronquist timberline beardtongue indicator that this symbol has images (7)
PEDE10 Penstemon deamii Pennell Deam's beardtongue
PELAD3 Penstemon laevigatus Aiton var. deamii (Pennell) Benn.  
PEDE11 Penstemon deaveri Crosswh. Mt. Graham beardtongue
PEVIA2 Penstemon virgatus A. Gray ssp. arizonicus (A. Gray) D.D. Keck  
PEDE22 Penstemon debilis O'Kane & J.L. Anderson Parachute beardtongue
PEDE12 Penstemon degeneri Crosswh. Degener's beardtongue
PEDE4 Penstemon deustus Douglas ex Lindl. scabland penstemon indicator that this symbol has images (4)
PEDED2 Penstemon deustus Douglas ex Lindl. var. deustus scabland penstemon indicator that this symbol has images (2)
PEDEP Penstemon deustus Douglas ex Lindl. var. pedicellatus M.E. Jones scabland penstemon indicator that this symbol has images (4)
PEDEH Penstemon deustus Douglas ex Lindl. ssp. heterander (Torr. & A. Gray) Pennell & D.D. Keck  
PEDEH2 Penstemon deustus Douglas ex Lindl. var. heterander (Torr. & A. Gray) Cronquist  
PEDES2 Penstemon deustus Douglas ex Lindl. var. suffrutescens L.F. Hend. scabland penstemon
PEDEV2 Penstemon deustus Douglas ex Lindl. var. variabilis (Suksd.) Cronquist scabland penstemon
PEDEV Penstemon deustus Douglas ex Lindl. ssp. variabilis (Suksd.) Pennell & D.D. Keck  
PEVA2 Penstemon variabilis Suksd.  
PEDI Penstemon digitalis Nutt. ex Sims foxglove beardtongue indicator that this symbol has images (16)
PELAA5 Penstemon laevigatus Aiton var. angulatus Benn.  
PELAD2 Penstemon laevigatus Aiton ssp. digitalis (Nutt. ex Sims) Benn.  
PEDI5 Penstemon diphyllus Rydb. twoleaf beardtongue
PETRD Penstemon triphyllus Douglas ex Lindl. ssp. diphyllus (Rydb.) D.D. Keck  
PEDI6 Penstemon discolor D.D. Keck Cataiina beardtongue
PEDI7 Penstemon dissectus Elliott dissected beardtongue
PEDI10 Penstemon distans N.H. Holmgren Mt. Tumbull beardtongue
PEDO3 Penstemon dolius M.E. Jones ex Pennell Jones' beardtongue indicator that this symbol has images (1)
PEDOD2 Penstemon dolius M.E. Jones ex Pennell var. dolius Jones' beardtongue indicator that this symbol has images (4)
PEDOD Penstemon dolius M.E. Jones ex Pennell var. duchesnensis N.H. Holmgren Duchesne penstemon
PEDU4 Penstemon duchesnensis (N.H. Holmgren) Neese  
PEDU5 Penstemon ×dubius Davidson (pro sp.) [centranthifolius × grinnellii] beardtongue
PEEA Penstemon eatonii A. Gray firecracker penstemon indicator that this symbol has images (6)
PEEAE2 Penstemon eatonii A. Gray ssp. eatonii firecracker penstemon indicator that this symbol has images (6)
PEEAE3 Penstemon eatonii A. Gray var. eatonii  
PEEAE Penstemon eatonii A. Gray ssp. exsertus (A. Nelson) D.D. Keck firecracker penstemon
PEEAU Penstemon eatonii A. Gray ssp. undosus (M.E. Jones) D.D. Keck firecracker penstemon indicator that this symbol has images (2)
PEEAU2 Penstemon eatonii A. Gray var. undosus M.E. Jones  
PEEL4 Penstemon elegantulus Pennell rockvine penstemon
PEEL5 Penstemon ellipticus J.M. Coult. & Fisher rocky ledge penstemon
PEDAE Penstemon davidsonii Greene var. ellipticus (J.M. Coult. & Fisher) B. Boivin  
PEER Penstemon eriantherus Pursh fuzzytongue penstemon indicator that this symbol has images (1)
PEERA Penstemon eriantherus Pursh var. argillosus M.E. Jones fuzzytongue penstemon
PEWHD Penstemon whitedii Piper ssp. dayanus (Howell) D.D. Keck  
PEERC Penstemon eriantherus Pursh var. cleburnei (M.E. Jones) Dorn Cleburn's penstemon indicator that this symbol has images (1)
PECL4 Penstemon cleburnei M.E. Jones  
PEERE Penstemon eriantherus Pursh var. eriantherus fuzzytongue penstemon
PEERR Penstemon eriantherus Pursh var. redactus Pennell & D.D. Keck longsac penstemon indicator that this symbol has images (2)
PEWHT Penstemon whitedii Piper ssp. tristis Pennell & D.D. Keck  
PEERW Penstemon eriantherus Pursh var. whitedii (Piper) A. Nelson Whited's penstemon
PEWH4 Penstemon whitedii Piper  
PEEU Penstemon euglaucus English glaucous beardtongue indicator that this symbol has images (5)
PEFE Penstemon fendleri Torr. & A. Gray Fendler's penstemon indicator that this symbol has images (7)
PEFI2 Penstemon filiformis (D.D. Keck) D.D. Keck threadleaf beardtongue
PEFL6 Penstemon flavescens Pennell high mountain penstemon
PEFL7 Penstemon floribundus D. Danley Cordillia's beardtongue
PEFL3 Penstemon floridus Brandegee Panamint beardtongue indicator that this symbol has images (7)
PEFLA2 Penstemon floridus Brandegee var. austinii (Eastw.) N.H. Holmgren Austin's beardtongue indicator that this symbol has images (5)
PEFLA Penstemon floridus Brandegee ssp. austinii (Eastw.) D.D. Keck  
PEFLF Penstemon floridus Brandegee var. floridus Panamint beardtongue indicator that this symbol has images (16)
PEFL8 Penstemon flowersii Neese & S.L. Welsh Flowers' beardtongue
PEFR9 Penstemon franklinii S.L. Welsh Franklin's penstemon
PEFR Penstemon fremontii Torr. & A. Gray ex A. Gray Fremont's beardtongue
PEFRF5 Penstemon fremontii Torr. & A. Gray ex A. Gray var. fremontii Fremont's beardtongue
PEFRG Penstemon fremontii Torr. & A. Gray ex A. Gray var. glabrescens Dorn & Lichvar Fremont's beardtongue
PEFR2 Penstemon fruticiformis Coville Death Valley beardtongue indicator that this symbol has images (6)
PEFRA Penstemon fruticiformis Coville ssp. amargosae D.D. Keck Death Valley beardtongue indicator that this symbol has images (4)
PEFRA4 Penstemon fruticiformis Coville var. amargosae (D.D. Keck) N.H. Holmgren  
PEFRF3 Penstemon fruticiformis Coville ssp. fruticiformis Death Valley beardtongue indicator that this symbol has images (3)
PEFRF6 Penstemon fruticiformis Coville var. fruticiformis  
PEFR3 Penstemon fruticosus (Pursh) Greene bush penstemon indicator that this symbol has images (1)
PEFRF4 Penstemon fruticosus (Pursh) Greene var. fruticosus bush penstemon
PEFRS Penstemon fruticosus (Pursh) Greene var. scouleri (Lindl.) Cronquist littleleaf bush penstemon
PEFRA2 Penstemon fruticosus (Pursh) Greene var. albus ?, ined.  
PEFRS3 Penstemon fruticosus (Pursh) Greene ssp. scouleri (Lindl.) Pennell & D.D. Keck  
PESC12 Penstemon scouleri Lindl.  
PEFRS2 Penstemon fruticosus (Pursh) Greene var. serratus (D.D. Keck) Cronquist sawleaf bush penstemon indicator that this symbol has images (2)
PEFRS4 Penstemon fruticosus (Pursh) Greene ssp. serratus D.D. Keck  
PEGA Penstemon gairdneri Hook. Gairdner's beardtongue
PEGAG2 Penstemon gairdneri Hook. var. gairdneri Gairdner's beardtongue indicator that this symbol has images (2)
PEGAH Penstemon gairdneri Hook. ssp. hians (Piper) D.D. Keck  
PEGAH2 Penstemon gairdneri Hook. var. hians Piper  
PEGAO2 Penstemon gairdneri Hook. var. oreganus A. Gray Gairdner's beardtongue indicator that this symbol has images (2)
PEGAO Penstemon gairdneri Hook. ssp. oreganus (A. Gray) D.D. Keck  
PEPU14 Penstemon puberulentus Rydb.  
PEGE3 Penstemon gentianoides (Kunth) Poir. gentian beardtongue indicator that this symbol has images (1)
PEGI4 Penstemon gibbensii Dorn Gibbens' beardtongue
PEGL3 Penstemon glaber Pursh sawsepal penstemon indicator that this symbol has images (2)
PEGLA Penstemon glaber Pursh var. alpinus (Torr.) A. Gray alpine sawsepal penstemon indicator that this symbol has images (8)
PEAL5 Penstemon alpinus Torr.  
PEGLB Penstemon glaber Pursh var. brandegeei (Porter) Freeman Brandegee's penstemon
PEALB Penstemon alpinus Torr. ssp. brandegeei (Porter) Penl.  
PEBR13 Penstemon brandegeei (Porter) Porter ex Rydb.  
PEGLG2 Penstemon glaber Pursh var. glaber sawsepal penstemon
PEALM Penstemon alpinus Torr. ssp. magnus (Pennell) Harrington  
PEGL4 Penstemon glandulosus Douglas stickystem penstemon
PEGLC2 Penstemon glandulosus Douglas var. chelanensis (D.D. Keck) Cronquist stickystem penstemon
PEGLC Penstemon glandulosus Douglas ssp. chelanensis D.D. Keck  
PEGLG3 Penstemon glandulosus Douglas var. glandulosus stickystem penstemon indicator that this symbol has images (1)
PEGL10 Penstemon glaucinus Pennell blueleaf beardtongue
PEGL5 Penstemon globosus (Piper) Pennell & D.D. Keck globe penstemon
PEGO2 Penstemon goodrichii N.H. Holmgren Lapoint beardtongue
PEGO Penstemon gormanii Greene Gorman's beardtongue
PEGR4 Penstemon gracilentus A. Gray slender penstemon indicator that this symbol has images (19)
PEGR5 Penstemon gracilis Nutt. lilac penstemon indicator that this symbol has images (1)
PEGRG3 Penstemon gracilis Nutt. var. gracilis lilac penstemon
PEGL21 Penstemon glaucus Graham  
PEGRW2 Penstemon gracilis Nutt. var. wisconsinensis (Pennell) Fassett Wisconsin penstemon
PEGRW Penstemon gracilis Nutt. ssp. wisconsinensis (Pennell) Pennell  
PEWI4 Penstemon wisconsinensis Pennell  
PEGR6 Penstemon grahamii D.D. Keck Uinta Basin beardtongue indicator that this symbol has images (2)
PEGR7 Penstemon grandiflorus Nutt. large beardtongue indicator that this symbol has images (10)
PEBR14 Penstemon bradburii Pursh  
PEGR20 Penstemon griffinii A. Nelson Griffin's beardtongue indicator that this symbol has images (6)
PEGR8 Penstemon grinnellii Eastw. Grinnell's beardtongue indicator that this symbol has images (9)
PEGRG4 Penstemon grinnellii Eastw. ssp. grinnellii Grinnell's beardtongue
PEGRG5 Penstemon grinnellii Eastw. var. grinnellii  
PEGRS Penstemon grinnellii Eastw. ssp. scrophularioides (M.E. Jones) Munz Grinnell's beardtongue indicator that this symbol has images (3)
PEGRS4 Penstemon grinnellii Eastw. var. scrophularioides (M.E. Jones) N.H. Holmgren  
PEGU Penstemon guadalupensis A. Heller Guadalupe beardtongue indicator that this symbol has images (1)
PEGUE Penstemon guadalupensis A. Heller var. ernstii (Pennell) Cory  
PEHA9 Penstemon hallii A. Gray Hall's beardtongue indicator that this symbol has images (8)
PEHA10 Penstemon harbourii A. Gray Harbour's beardtongue indicator that this symbol has images (1)
PEHA11 Penstemon harringtonii Penl. Harrington's beardtongue
PEHA18 Penstemon hartwegii Benth. Hartweg's beardtongue
PEHA2 Penstemon havardii A. Gray Big Bend beardtongue indicator that this symbol has images (3)
PEHA12 Penstemon haydenii S. Watson blowout beardtongue indicator that this symbol has images (1)
PEHE2 Penstemon heterodoxus A. Gray Sierra beardtongue
PEHEC2 Penstemon heterodoxus A. Gray var. cephalophorus (Greene) N.H. Holmgren Sierra beardtongue
PEHEC Penstemon heterodoxus A. Gray ssp. cephalophorus (Greene) D.D. Keck  
PEHEH3 Penstemon heterodoxus A. Gray var. heterodoxus Sierra beardtongue indicator that this symbol has images (10)
PEHES2 Penstemon heterodoxus A. Gray var. shastensis (D.D. Keck) N.H. Holmgren Shasta beardtongue
PESH Penstemon shastensis D.D. Keck  
PEHE3 Penstemon heterophyllus Lindl. bunchleaf penstemon indicator that this symbol has images (2)
PEHEA Penstemon heterophyllus Lindl. ssp. australis (Munz & I.M. Johnst.) D.D. Keck foothill beardtongue
PEHEA2 Penstemon heterophyllus Lindl. var. australis Munz & I.M. Johnst.  
PEHEH2 Penstemon heterophyllus Lindl. ssp. heterophyllus bunchleaf penstemon
PEHEH5 Penstemon heterophyllus Lindl. var. heterophyllus  
PEHEP Penstemon heterophyllus Lindl. ssp. purdyi D.D. Keck Purdy's penstemon
PEHEP3 Penstemon heterophyllus Lindl. var. purdyi (D.D. Keck) McMinn  
PESP11 Penstemon spinulosus Wooton & Standl.  
PEHI Penstemon hirsutus (L.) Willd. hairy beardtongue indicator that this symbol has images (10)
PEHIM Penstemon hirsutus (L.) Willd. var. minimus Benn.  
PEHIP Penstemon hirsutus (L.) Willd. var. pygmaeus Benn.  
PEHU Penstemon humilis Nutt. ex A. Gray low beardtongue indicator that this symbol has images (1)
PEHUB Penstemon humilis Nutt. ex A. Gray ssp. brevifolius (A. Gray) D.D. Keck low beardtongue
PEHUB2 Penstemon humilis Nutt. ex A. Gray var. brevifolius A. Gray  
PEHUH Penstemon humilis Nutt. ex A. Gray ssp. humilis low beardtongue indicator that this symbol has images (4)
PECI11 Penstemon cinereus Piper  
PECIF Penstemon cinereus Piper var. foliatus D.D. Keck  
PEDE21 Penstemon decurvus Pennell ex Crosswh.  
PEHUD Penstemon humilis Nutt. ex A. Gray var. deserticus S.L. Welsh, nom. inq.  
PEHUH2 Penstemon humilis Nutt. ex A. Gray var. humilis  
PEHUO Penstemon humilis Nutt. ex A. Gray ssp. obtusifolius (Pennell) D.D. Keck low beardtongue
PEHUO2 Penstemon humilis Nutt. ex A. Gray var. obtusifolius (Pennell) Reveal  
PEID Penstemon idahoensis N.D. Atwood & S.L. Welsh Idaho beardtongue
PEIM2 Penstemon immanifestus N.H. Holmgren Steptoe Valley beardtongue indicator that this symbol has images (2)
PEIN3 Penstemon incertus Brandegee Mojave beardtongue indicator that this symbol has images (10)
PEIN9 Penstemon inflatus Crosswh. inflated beardtongue
PEJA Penstemon jamesii Benth. James' beardtongue indicator that this symbol has images (4)
PEBR12 Penstemon brevibarbatus Crosswh.  
PEJAT Penstemon jamesii Benth. ssp. typicus D.D. Keck  
PEJA2 Penstemon janishiae N.H. Holmgren Antelope Valley beardtongue indicator that this symbol has images (15)
PEJO2 Penstemon ×jonesii Pennell (pro sp.) [eatonii × laevis] beardtongue
PEKI Penstemon kingii S. Watson King's beardtongue
PENY Penstemon nyeensis Crosswh.  
PEKR3 Penstemon kralii D. Estes Kral's beardtongue
PELA6 Penstemon labrosus (A. Gray) Hook. f. San Gabriel beardtongue indicator that this symbol has images (3)
PELA7 Penstemon laetus A. Gray mountain blue penstemon
PELAL6 Penstemon laetus A. Gray ssp. laetus mountain blue penstemon indicator that this symbol has images (2)
PELAL11 Penstemon laetus A. Gray var. laetus  
PELAL Penstemon laetus A. Gray ssp. leptosepalus (Greene ex A. Gray) D.D. Keck mountain blue penstemon indicator that this symbol has images (4)
PELAL10 Penstemon laetus A. Gray var. leptosepalus Greene ex A. Gray  
PELAS Penstemon laetus A. Gray ssp. sagittatus D.D. Keck mountain blue penstemon indicator that this symbol has images (3)
PELAS3 Penstemon laetus A. Gray var. sagittatus (D.D. Keck) McMinn  
PELA8 Penstemon laevigatus Aiton eastern smooth beardtongue indicator that this symbol has images (1)
PEPE17 Penstemon penstemon (L.) Britton, nom. inval.  
PELA15 Penstemon laevis Pennell southwestern beardtongue indicator that this symbol has images (8)
PELA9 Penstemon laricifolius Hook. & Arn. larchleaf beardtongue
PELAE Penstemon laricifolius Hook. & Arn. ssp. exilifolius (A. Nelson) D.D. Keck larchleaf beardtongue
PELAE2 Penstemon laricifolius Hook. & Arn. var. exilifolius (A. Nelson) Payson  
PELAL7 Penstemon laricifolius Hook. & Arn. ssp. laricifolius larchleaf beardtongue
PELAL12 Penstemon laricifolius Hook. & Arn. var. laricifolius  
PELA10 Penstemon laxiflorus Pennell nodding beardtongue indicator that this symbol has images (3)
PEAUA2 Penstemon australis Small var. ameles Crosswh.  
PEAUL Penstemon australis Small ssp. laxiflorus (Pennell) Benn.  
PELA17 Penstemon laxus A. Nelson tufted penstemon
PEWAL2 Penstemon watsonii A. Gray ssp. laxus (A. Nelson) D.D. Keck  
PELE7 Penstemon leiophyllus Pennell smoothleaf beardtongue indicator that this symbol has images (2)
PELEF Penstemon leiophyllus Pennell var. francisci-pennellii (Crosswh.) N.H. Holmgren smoothleaf beardtongue indicator that this symbol has images (5)
PEFR7 Penstemon francisci-pennellii Crosswh.  
PELEK Penstemon leiophyllus Pennell var. keckii (Clokey) N.H. Holmgren Keck's beardtongue indicator that this symbol has images (5)
PEKE2 Penstemon keckii Clokey  
PELEL Penstemon leiophyllus Pennell var. leiophyllus smoothleaf beardtongue
PELE8 Penstemon lemhiensis (D.D. Keck) D.D. Keck & Cronquist Lemhi penstemon indicator that this symbol has images (1)
PESPL Penstemon speciosus Douglas ex Lindl. ssp. lemhiensis D.D. Keck  
PELE2 Penstemon lentus Pennell handsome beardtongue indicator that this symbol has images (4)
PELEA3 Penstemon lentus Pennell var. albiflorus (D.D. Keck) Reveal handsome beardtongue indicator that this symbol has images (5)
PELEA2 Penstemon lentus Pennell ssp. albiflorus D.D. Keck  
PELEL2 Penstemon lentus Pennell var. lentus handsome beardtongue indicator that this symbol has images (4)
PELE9 Penstemon leonardii Rydb. Leonard's beardtongue
PELEH Penstemon leonardii Rydb. var. higginsii Neese Higgins' beardtongue
PELEL3 Penstemon leonardii Rydb. var. leonardii Leonard's beardtongue
PELEP Penstemon leonardii Rydb. var. patricus (N.H. Holmgren) Neese Leonard's beardtongue
PEPA28 Penstemon patricus N.H. Holmgren  
PELE14 Penstemon leptanthus Pennell Sevier Plateau beardtongue
PELI2 Penstemon linarioides A. Gray toadflax penstemon indicator that this symbol has images (6)
PELIC Penstemon linarioides A. Gray ssp. coloradoensis (A. Nelson) D.D. Keck toadflax penstemon indicator that this symbol has images (5)
PECO26 Penstemon coloradoensis A. Nelson  
PELIC2 Penstemon linarioides A. Gray ssp. compactifolius D.D. Keck toadflax beardtongue
PELIL2 Penstemon linarioides A. Gray ssp. linarioides toadflax beardtongue
PELIT Penstemon linarioides A. Gray ssp. typicus D.D. Keck  
PELIM Penstemon linarioides A. Gray ssp. maguirei D.D. Keck Maguire's penstemon
PELIS Penstemon linarioides A. Gray ssp. sileri (A. Gray) D.D. Keck Siler's penstemon
PELIS2 Penstemon linarioides A. Gray var. sileri A. Gray  
PELIV Penstemon linarioides A. Gray var. viridis D.D. Keck  
PELO5 Penstemon longiflorus (Pennell) S.L. Clark longflower penstemon
PECYL Penstemon cyananthus Hook. ssp. longiflorus Pennell  
PECYL2 Penstemon cyananthus Hook. var. longiflorus (Pennell) Neese  
PELY2 Penstemon lyallii (A. Gray) A. Gray Lyall's beardtongue
PEMA13 Penstemon marcusii (D.D. Keck) N.H. Holmgren Marcus' beardtongue
PEMOM3 Penstemon moffatii Eastw. ssp. marcusii D.D. Keck  
PEME2 Penstemon mensarum Pennell tiger beardtongue
PEME15 Penstemon metcalfei Wooton & Standl. Metcalfe's beardtongue
PEMI8 Penstemon ×mirus A. Nelson (pro sp.) [eatonii × palmeri] beardtongue
PEMI3 Penstemon miser A. Gray Malheur penstemon indicator that this symbol has images (4)
PEMO3 Penstemon moffatii Eastw. Moffatt's beardtongue
PEMOM Penstemon moffatii Eastw. ssp. moffatii Moffatt's beardtongue
PEMOP Penstemon moffatii Eastw. ssp. paysonii (Pennell) D.D. Keck Moffatt's beardtongue
PEMO Penstemon monoensis A. Heller Mono penstemon indicator that this symbol has images (5)
PEMO4 Penstemon montanus Greene cordroot beardtongue indicator that this symbol has images (2)
PEMOI2 Penstemon montanus Greene var. idahoensis (Pennell & D.D. Keck) Cronquist Central Idaho penstemon
PEMOI Penstemon montanus Greene ssp. idahoensis Pennell & D.D. Keck  
PEMOM2 Penstemon montanus Greene var. montanus cordroot beardtongue
PEMO5 Penstemon moriahensis N.H. Holmgren Mt. Moriah beardtongue indicator that this symbol has images (3)
PEMU9 Penstemon multiflorus Chapm. ex Benth. manyflower beardtongue
PEMU2 Penstemon murrayanus Hook. scarlet beardtongue indicator that this symbol has images (1)
PENA3 Penstemon nanus D.D. Keck dwarf beardtongue indicator that this symbol has images (3)
PENA4 Penstemon navajoa N.H. Holmgren Navajo Mountain beardtongue
PENE6 Penstemon neomexicanus Wooton & Standl. New Mexico beardtongue indicator that this symbol has images (1)
PENE2 Penstemon neotericus D.D. Keck Plumas County beardtongue indicator that this symbol has images (2)
PENE3 Penstemon newberryi A. Gray mountain pride indicator that this symbol has images (10)
PENEB Penstemon newberryi A. Gray ssp. berryi (Eastw.) D.D. Keck Berry's penstemon indicator that this symbol has images (4)
PENEB3 Penstemon newberryi A. Gray var. berryi (Eastw.) N.H. Holmgren  
PENEN Penstemon newberryi A. Gray ssp. newberryi mountain pride indicator that this symbol has images (13)
PENEN4 Penstemon newberryi A. Gray var. newberryi  
PENES Penstemon newberryi A. Gray ssp. sonomensis (Greene) D.D. Keck Sonoma penstemon indicator that this symbol has images (1)
PENES3 Penstemon newberryi A. Gray var. sonomensis (Greene) Jeps.  
PENI3 Penstemon nitidus Douglas ex Benth. waxleaf penstemon
PENIN Penstemon nitidus Douglas ex Benth. var. nitidus waxleaf penstemon
PENIP2 Penstemon nitidus Douglas ex Benth. var. polyphyllus (Pennell) Cronquist waxleaf penstemon
PENIP Penstemon nitidus Douglas ex Benth. ssp. polyphyllus Pennell  
PENU Penstemon nudiflorus A. Gray Flagstaff beardtongue
PEOK Penstemon oklahomensis Pennell Oklahoma beardtongue
PEOL Penstemon oliganthus Wooton & Standl. Apache beardtongue indicator that this symbol has images (2)
PEOP Penstemon ophianthus Pennell coiled anther penstemon
PEJAO Penstemon jamesii Benth. ssp. ophianthus (Pennell) D.D. Keck  
PEOS Penstemon osterhoutii Pennell Osterhout's beardtongue indicator that this symbol has images (4)
PEOV2 Penstemon ovatus Douglas ex Hook. eggleaf beardtongue indicator that this symbol has images (2)
PEPA6 Penstemon pachyphyllus A. Gray ex Rydb. thickleaf beardtongue indicator that this symbol has images (7)
PEPAC2 Penstemon pachyphyllus A. Gray ex Rydb. var. congestus (M.E. Jones) N.H. Holmgren thickleaf beardtongue indicator that this symbol has images (3)
PECO27 Penstemon congestus (M.E. Jones) Pennell  
PEPAC Penstemon pachyphyllus A. Gray ex Rydb. ssp. congestus (M.E. Jones) D.D. Keck  
PEPAM5 Penstemon pachyphyllus A. Gray ex Rydb. var. mucronatus (N.H. Holmgren) Neese mucronate penstemon
PEMU7 Penstemon mucronatus N.H. Holmgren  
PEPAP8 Penstemon pachyphyllus A. Gray ex Rydb. var. pachyphyllus thickleaf beardtongue
PEPA23 Penstemon pahutensis N.H. Holmgren Paiute beardtongue indicator that this symbol has images (7)
PEPA7 Penstemon pallidus Small pale beardtongue indicator that this symbol has images (2)
PEARP Penstemon arkansanus Pennell var. pubescens Pennell  
PEBR10 Penstemon brevisepalus Pennell  
PEPA8 Penstemon palmeri A. Gray Palmer's penstemon indicator that this symbol has images (13)
PEPAE2 Penstemon palmeri A. Gray var. eglandulosus (D.D. Keck) N.H. Holmgren scented beardtongue
PEPAE Penstemon palmeri A. Gray ssp. eglandulosus D.D. Keck  
PEPAM3 Penstemon palmeri A. Gray var. macranthus (Eastw.) N.H. Holmgren scented beardtongue
PEMA16 Penstemon macranthus Eastw.  
PEPAP9 Penstemon palmeri A. Gray var. palmeri Palmer's penstemon indicator that this symbol has images (8)
PEPAT Penstemon palmeri A. Gray ssp. typicus D.D. Keck  
PEPA9 Penstemon papillatus J.T. Howell Inyo beardtongue
PEPA10 Penstemon ×parishii A. Gray (pro sp.) [centranthifolius × spectabilis] beardtongue
PEPA24 Penstemon parryi (A. Gray) A. Gray Parry's beardtongue indicator that this symbol has images (9)
PEPA25 Penstemon parviflorus Pennell Montezuma County beardtongue
PEPA26 Penstemon parvus Pennell Aquarius Plateau beardtongue
PEPA27 Penstemon patens (M.E. Jones) N.H. Holmgren Lone Pine beardtongue indicator that this symbol has images (8)
PECOP4 Penstemon confusus M.E. Jones ssp. patens (M.E. Jones) D.D. Keck  
PEPA29 Penstemon payettensis A. Nelson & J.F. Macbr. Payette beardtongue indicator that this symbol has images (1)
PEPA30 Penstemon paysoniorum D.D. Keck Payson's beardtongue indicator that this symbol has images (6)
PEPE10 Penstemon peckii Pennell Peck's beardtongue
PEPE32 Penstemon ×peirsonii Munz & I.M. Johnst. (pro sp.) [grinnellii × speciosus] beardtongue
PEPE25 Penstemon penlandii W.A. Weber Penland's beardtongue
PEPE11 Penstemon pennellianus D.D. Keck Blue Mountain beardtongue
PEPE12 Penstemon perpulcher A. Nelson Minidoka beardtongue indicator that this symbol has images (5)
PEMI13 Penstemon minidokanus A. Nelson & J.F. Macbr.  
PEPE3 Penstemon personatus D.D. Keck closethroat beardtongue
PEPE13 Penstemon petiolatus Brandegee petiolate beardtongue
PEPI3 Penstemon pinifolius Greene pineneedle beardtongue indicator that this symbol has images (14)
PEPI4 Penstemon pinorum L.M. Shultz & J.S. Shultz Pine Valley penstemon
PEPL4 Penstemon platyphyllus Rydb. broadleaf beardtongue
PEPR6 Penstemon pratensis Greene western whiteflower beardtongue indicator that this symbol has images (1)
PEPR2 Penstemon procerus Douglas ex Graham littleflower penstemon indicator that this symbol has images (9)
PEPRA2 Penstemon procerus Douglas ex Graham var. aberrans (M.E. Jones) A. Nelson pincushion beardtongue
PEPRA Penstemon procerus Douglas ex Graham ssp. aberrans (M.E. Jones) D.D. Keck  
PEPRB2 Penstemon procerus Douglas ex Graham var. brachyanthus (Pennell) Cronquist pincushion beardtongue indicator that this symbol has images (2)
PEPRB Penstemon procerus Douglas ex Graham ssp. brachyanthus (Pennell) D.D. Keck  
PETOB Penstemon tolmiei Hook. ssp. brachyanthus (Pennell) D.D. Keck  
PEPRF2 Penstemon procerus Douglas ex Graham var. formosus (A. Nelson) Cronquist pincushion beardtongue
PEPRF Penstemon procerus Douglas ex Graham ssp. formosus (A. Nelson) D.D. Keck  
PETOF Penstemon tolmiei Hook. ssp. formosus (A. Nelson) D.D. Keck  
PEPRM2 Penstemon procerus Douglas ex Graham var. modestus (Greene) N.H. Holmgren pincushion beardtongue indicator that this symbol has images (1)
PEMO11 Penstemon modestus Greene  
PEPRM Penstemon procerus Douglas ex Graham ssp. modestus (Greene) D.D. Keck  
PEPRP Penstemon procerus Douglas ex Graham var. procerus pincushion beardtongue
PECOP5 Penstemon confertus Douglas ex Lindl. var. procerus (Douglas ex Graham) Coville  
PECOP6 Penstemon confertus Douglas ex Lindl. ssp. procerus (Douglas ex Graham) D.V. Clark  
PEPRT Penstemon procerus Douglas ex Graham var. tolmiei (Hook.) Cronquist Tolmie's penstemon indicator that this symbol has images (1)
PEPRT2 Penstemon procerus Douglas ex Graham ssp. tolmiei (Hook.) D.D. Keck  
PETO3 Penstemon tolmiei Hook.  
PEPR3 Penstemon pruinosus Douglas ex Lindl. Chelan beardtongue
PEPS4 Penstemon pseudoparvus Crosswh. Mt. Washington beardtongue
PEPS3 Penstemon pseudoputus (Crosswh.) N.H. Holmgren Kaibab Plateau beardtongue indicator that this symbol has images (4)
PEVIP Penstemon virgatus A. Gray ssp. pseudoputus Crosswh.  
PEPS Penstemon pseudospectabilis M.E. Jones desert penstemon indicator that this symbol has images (14)
PEPSC Penstemon pseudospectabilis M.E. Jones ssp. connatifolius (A. Nelson) D.D. Keck desert beardtongue
PEPSP Penstemon pseudospectabilis M.E. Jones ssp. pseudospectabilis desert beardtongue
PEPST Penstemon pseudospectabilis M.E. Jones ssp. typicus D.D. Keck  
PEPU11 Penstemon pudicus Reveal & Beatley Kawich Range beardtongue indicator that this symbol has images (3)
PEPU12 Penstemon pumilus Nutt. Salmon River beardtongue
PEPU4 Penstemon purpusii Brandegee Snow Mountain beardtongue indicator that this symbol has images (2)
PEPU13 Penstemon putus A. Nelson Black River beardtongue
PEVIP2 Penstemon virgatus A. Gray ssp. putus (A. Nelson) Crosswh.  
PERA2 Penstemon radicosus A. Nelson matroot penstemon indicator that this symbol has images (2)
PERA8 Penstemon ramosus Crosswh. lanceleaf beardtongue
PELA16 Penstemon lanceolatus auct. non Benth.  
PEPA47 Penstemon pauciflorus auct. non Greene  
PERA3 Penstemon rattanii A. Gray Rattan's beardtongue indicator that this symbol has images (4)
PERAK Penstemon rattanii A. Gray ssp. kleei (Greene) D.D. Keck Santa Cruz Mountains beardtongue
PERAK2 Penstemon rattanii A. Gray var. kleei (Green) A. Gray  
PERAR2 Penstemon rattanii A. Gray ssp. rattanii Rattan's beardtongue
PERAR3 Penstemon rattanii A. Gray var. rattanii  
PERE7 Penstemon retrorsus Payson ex Pennell Adobe Hills beardtongue
PERH6 Penstemon rhizomatosus N.H. Holmgren Scheel Creek beardtongue
PERI Penstemon richardsonii Douglas ex Lindl. cutleaf beardtongue indicator that this symbol has images (5)
PERIC3 Penstemon richardsonii Douglas ex Lindl. var. curtiflorus (D.D. Keck) Cronquist cutleaf beardtongue
PERIC2 Penstemon richardsonii Douglas ex Lindl. ssp. curtiflorus D.D. Keck  
PERID3 Penstemon richardsonii Douglas ex Lindl. var. dentatus (D.D. Keck) Cronquist cutleaf beardtongue
PERID2 Penstemon richardsonii Douglas ex Lindl. ssp. dentatus D.D. Keck  
PERIR Penstemon richardsonii Douglas ex Lindl. var. richardsonii Richardson's penstemon
PERO12 Penstemon roezlii Regel Roezl's penstemon indicator that this symbol has images (12)
PECI10 Penstemon cinerascens Greene ex C.F. Baker  
PELAR3 Penstemon laetus A. Gray ssp. roezlii (Regel) D.D. Keck  
PELAR4 Penstemon laetus A. Gray var. roezlii (Regel) Jeps.  
PERO10 Penstemon rostriflorus Kellogg Bridge penstemon indicator that this symbol has images (18)
PEBR7 Penstemon bridgesii A. Gray  
PEBRA2 Penstemon bridgesii A. Gray var. amplexicaulis Monnet  
PERU5 Penstemon rubicundus D.D. Keck Wassuk Range beardtongue indicator that this symbol has images (6)
PERU Penstemon rupicola (Piper) Howell cliff beardtongue indicator that this symbol has images (9)
PERY Penstemon rydbergii A. Nelson Rydberg's penstemon indicator that this symbol has images (7)
PERYA Penstemon rydbergii A. Nelson var. aggregatus (Pennell) N.H. Holmgren meadow beardtongue
PEAG2 Penstemon aggregatus Pennell  
PERYA2 Penstemon rydbergii A. Nelson ssp. aggregatus (Pennell) D.D. Keck  
PERYO Penstemon rydbergii A. Nelson var. oreocharis (Greene) N.H. Holmgren herbaceous penstemon indicator that this symbol has images (5)
PEOR3 Penstemon oreocharis Greene  
PERYR Penstemon rydbergii A. Nelson var. rydbergii swollen penstemon indicator that this symbol has images (7)
PEHE9 Penstemon hesperius M. Peck  
PERYV Penstemon rydbergii A. Nelson var. varians (A. Nelson) Cronquist  
PEVA3 Penstemon vaseyanus Greene  
PESA2 Penstemon saxosorum Pennell upland beardtongue
PESC2 Penstemon scapoides D.D. Keck pinyon beardtongue indicator that this symbol has images (13)
PESC5 Penstemon scariosus Pennell White River beardtongue
PESCA Penstemon scariosus Pennell var. albifluvis (England) N.H. Holmgren White River beardtongue
PEAL80 Penstemon albifluvis England  
PESCC Penstemon scariosus Pennell var. cyanomontanus Neese Neese's Blue Mountain beardtongue
PESCG Penstemon scariosus Pennell var. garrettii (Pennell) N.H. Holmgren Garrett's beardtongue
PEGA4 Penstemon garrettii Pennell  
PESCS Penstemon scariosus Pennell var. scariosus White River beardtongue
PESE11 Penstemon secundiflorus Benth. sidebells penstemon indicator that this symbol has images (2)
PESE12 Penstemon seorsus (A. Nelson) D.D. Keck shortlobe penstemon
PESE13 Penstemon sepalulus A. Nelson littlecup beardtongue
PESE5 Penstemon serrulatus Menzies ex Sm. serrulate penstemon indicator that this symbol has images (3)
PESM Penstemon smallii A. Heller Small's beardtongue indicator that this symbol has images (3)
PESP2 Penstemon spatulatus Pennell Wallowa beardtongue
PESP Penstemon speciosus Douglas ex Lindl. royal penstemon indicator that this symbol has images (23)
PESPK Penstemon speciosus Douglas ex Lindl. ssp. kennedyi (A. Nelson) D.D. Keck  
PESP3 Penstemon spectabilis Thurb. ex A. Gray showy penstemon indicator that this symbol has images (11)
PESPS2 Penstemon spectabilis Thurb. ex A. Gray ssp. spectabilis showy penstemon
PESPS5 Penstemon spectabilis Thurb. ex A. Gray var. spectabilis  
PESPS Penstemon spectabilis Thurb. ex A. Gray ssp. subviscosus D.D. Keck showy penstemon
PESPS3 Penstemon spectabilis Thurb. ex A. Gray var. subviscosus (D.D. Keck) McMinn  
PEST6 Penstemon stenophyllus (A. Gray) Howell Sonoran beardtongue
PEST Penstemon stephensii Brandegee Stephens' penstemon
PEST9 Penstemon strictiformis Rydb. Mancos penstemon
PESTS Penstemon strictus Benth. ssp. strictiformis (Rydb.) D.D. Keck  
PEST2 Penstemon strictus Benth. Rocky Mountain penstemon indicator that this symbol has images (12)
PESTA Penstemon strictus Benth. ssp. angustus Pennell  
PESU2 Penstemon subglaber Rydb. smooth penstemon indicator that this symbol has images (1)
PESU6 Penstemon subserratus Pennell finetooth beardtongue
PESU7 Penstemon subulatus M.E. Jones hackberry beardtongue
PESU10 Penstemon sudans M.E. Jones Susanville beardtongue
PEDES Penstemon deustus Douglas ex Lindl. ssp. sudans (M.E. Jones) Pennell & D.D. Keck  
PESU8 Penstemon superbus A. Nelson superb beardtongue indicator that this symbol has images (8)
PETE4 Penstemon tenuiflorus Pennell eastern whiteflower beardtongue indicator that this symbol has images (1)
PETE3 Penstemon tenuis Small sharpsepal beardtongue indicator that this symbol has images (4)
PETE9 Penstemon teucrioides Greene germander beardtongue
PETH2 Penstemon thompsoniae (A. Gray) Rydb. Thompson's beardtongue indicator that this symbol has images (3)
PETHJ Penstemon thompsoniae (A. Gray) Rydb. ssp. jaegeri D.D. Keck Jaeger's beardtongue
PETHT2 Penstemon thompsoniae (A. Gray) Rydb. ssp. thompsoniae Thompson's beardtongue
PETHD Penstemon thompsoniae (A. Gray) Rydb. var. desperatus Neese  
PETH3 Penstemon thurberi Torr. Thurber's penstemon indicator that this symbol has images (1)
PETHA Penstemon thurberi Torr. var. anestius Reveal & Beatley  
PETI2 Penstemon tidestromii Pennell Tidestrom's beardtongue
PETI3 Penstemon tiehmii N.H. Holmgren Tiehm's beardtongue
PETR Penstemon tracyi D.D. Keck Trinity penstemon
PETR2 Penstemon triflorus A. Heller Heller's beardtongue indicator that this symbol has images (4)
PETRI Penstemon triflorus A. Heller ssp. integrifolius Pennell Heller's beardtongue
PEHE10 Penstemon helleri Small  
PETRI2 Penstemon triflorus A. Heller var. integrifolius (Pennell) Cory  
PETRT2 Penstemon triflorus A. Heller ssp. triflorus Heller's beardtongue
PETR6 Penstemon triphyllus Douglas ex Lindl. Riggin's penstemon
PETU Penstemon tubaeflorus Nutt. white wand beardtongue indicator that this symbol has images (5)
PETU3 Penstemon tubiflorus Nutt., orth. var.  
PETUA Penstemon tubaeflorus Nutt. var. achoreus Fernald white wand beardtongue
PETUA2 Penstemon tubiflorus Nutt. var. achoreus Fernald, orth. var.  
PETUT Penstemon tubaeflorus Nutt. var. tubaeflorus white wand beardtongue
PETUT2 Penstemon tubiflorus Nutt. var. tubiflorus Nutt., orth. var.  
PETU2 Penstemon tusharensis N.H. Holmgren Tushar Range beardtongue
PECAS Penstemon caespitosus Nutt. ex A. Gray var. suffruticosus A. Gray  
PEUI Penstemon uintahensis Pennell Uinta Mountain beardtongue
PEUN Penstemon unilateralis Rydb. oneside penstemon indicator that this symbol has images (2)
PEVIA Penstemon virgatus A. Gray ssp. asa-grayi Crosswh.  
PEVIA3 Penstemon virgatus A. Gray var. asa-grayi (Crosswh.) Dorn  
PEUT Penstemon utahensis Eastw. Utah penstemon indicator that this symbol has images (14)
PEVE2 Penstemon venustus Douglas ex Lindl. Venus penstemon indicator that this symbol has images (5)
PEVE9 Penstemon versicolor Pennell variable-color beardtongue
PEVI3 Penstemon virens Pennell ex Rydb. Front Range beardtongue indicator that this symbol has images (6)
PEVI4 Penstemon virgatus A. Gray upright blue beardtongue indicator that this symbol has images (2)
PEWA8 Penstemon wardii A. Gray Ward's beardtongue indicator that this symbol has images (1)
PEWA9 Penstemon washingtonensis D.D. Keck Washington beardtongue indicator that this symbol has images (2)
PEWA Penstemon watsonii A. Gray Watson's penstemon indicator that this symbol has images (4)
PEWH Penstemon whippleanus A. Gray Whipple's penstemon indicator that this symbol has images (17)
PEWI Penstemon wilcoxii Rydb. Wilcox's penstemon
PEOVP Penstemon ovatus Douglas ex Hook. var. pinetorum Piper  
PEWR2 Penstemon wrightii Hook. Wright's beardtongue
PEYA2 Penstemon yampaensis Penl. Yampa beardtongue
PEACY Penstemon acaulis L.O. Williams var. yampaensis (Penl.) Neese  
SAPE15 Salvia pentstemonoides Kunth & Bouché, big red sage
SAPE6 Salvia penstemonoides Kunth & Bouché  
 

 

 
Time Generated: 04/02/2020 03:08 PM CDT