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Crataegus L.
hawthorn

Data Source

Last revised by:
USDA NRCS National Plant Data Team
Curated and maintained by:
USDA NRCS National Plant Data Team
 

Data Documentation

Documentation State Type
1900. Memoirs of the New York Botanical Garden. New York Botanical Garden, New York. MT Literature
1911. Bulletin of the Torrey Botanical Club. NC Literature
1920. Journal of the Arnold Arboretum. AL, FL, GA, MS, NC, SC Literature
1921. Journal of the Arnold Arboretum. AR, FL Literature
1925. Journal of the Arnold Arboretum. AL, AR, DE, FL, GA, ID, IL, IN, KS, LA, MA, MD, MI, MS, NC, ND, NE, NH, NY, OH, OK, OR, PA, SC, SD, TN, TX, VA, VT, WA, WI, WV Literature
1946. Castanea. MD Literature
1964. Milwaukee Public Museum Contributions in Biology and Geology. CT, DE, IL, MI, NC, NY, PA, WI Literature
1965. Castanea. VA Literature
1967. Rhodora. CT, MA, NH Literature
1978. Madroño. OR Literature
1979. Sida. TN Literature
1980. Canadian Journal of Botany. FL, PA, WI Literature
1983. Annals of the Missouri Botanical Garden. MS Literature
1987. Canadian Journal of Botany. WI Literature
1990. Canadian Journal of Botany. CT, MS, PA, TX, WI Literature
1990. Phytologia. TX Literature
1991. Douglasia. WA Literature
1993. Michigan Botanist. WI Literature
1997. Botanical Electronic News. ID Literature
1997. Sida. TX Literature
1998. Annals of the Missouri Botanical Garden. LA, MS Literature
1998. Botanical Electronic News. AK, CA, ID, MT, OR, WA Literature
1998. Canadian Journal of Botany. AZ, MT, NM Literature
1998. Sida. ID, MT, WA Literature
1999. Sida. AZ Literature
1999. University of Minnesota Herbarium: Vascular plant collection. MN Literature
2000. CalFlora: Information on California plants for education, research and conservation. The CalFlora Database, Berkeley. CA Literature
A.E. Radford s.n. (NCU 34279). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
A.E. Radford s.n. (NCU 34285). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
A.R. Diamond 1630 (NCU 568188). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
A.W. Cusick 7141 (NCU 369217). Specimen at University of North Carolina, Chapel Hill, North Carolina. OH Specimen
Abrams, L. 1960. An illustrated flora of the Pacific States. Stanford University Press, Stanford. AK, ID, MN, MT, OR Literature
Alabama Natural Heritage Program. AL Literature
Anderson 5613 (ALA 00001055). Specimen at University of Alaska Museum, Fairbanks, Alaska. AK Specimen
Anonymous. Personal communication to John Kartesz. GA, KY, NY, VA Literature
Atkinson, S., and F. Sharpe. 1985. Wild plants of the San Juan Islands. The Mountaineers, Seattle. WA Literature
Atwood, J.T., et al. 1973. Check list of Vermont plants. Vermont Botanical and Bird Club. VT Literature
BOIS. Specimen at Rocky Mountain Research Station, Boise, Idaho. ID Specimen
Barkworth, Mary E. Personal communication. DE, NC Literature
Bluhm, Wilbur. Personal communication. OR Literature
Booth, W.E., and J.C. Wright. 1966. Flora of Montana. Montana State University, Bozeman. MT Literature
Braun, E.L. 1961. The woody plants of Ohio. Ohio State University Press, Columbus. OH Literature
Brouillet, L., F. Coursol, and M. Favreau. 2006. VASCAN, the Database of Vascular Plants of Canada. Herbier Marie-Victorin, Institut de recherche en biologie végétale, Université de Montréal. AB, BC, MB, NB, NF, NS, ON, PE, QC, SK Literature
Brown, R.G., and M.L. Brown. 1972. Woody plants of Maryland. Port City Press, Inc., Baltimore. MD Literature
Bryson, C.T.,and D.A. Skojac, Jr. 2011. An annotated checklist of the vascular flora of Washington County, Mississippi. Journal of the Botanical Research Institute of Texas 5: 855-866. MS Literature
C.L. Gruber 17 (NCU 407595). Specimen at University of North Carolina, Chapel Hill, North Carolina. PA Specimen
CIC. Specimen at Albertson College of Idaho, Caldwell, Idaho. ID Specimen
Campbell, C.S., et al. 1995. Checklist of the vascular plants of Maine, 3rd revision. Bulletin of the Josselyn Botanical Society, No. 13. ME Literature
Campbell, J., and M. Medley. 2012. The atlas of vascular plants in Kentucky. KY Literature
Campbell, Julian. Personal communication. KY Literature
Charboneau, J.L.M., B.E. Nelson, and R.L. Hartman. 2013. A floristic inventory of Phillips and Valley counties, Montana (U.S.A.). Journal of the Botanical Research Institute of Texas 7(2): 847-878. MT Literature
Chester, E.W, B.E. Wofford, and R. Kral. 1997. Atlas of Tennessee vascular plants. Vol. 2. Miscellaneous Publication No. 13. Austin Peay State University, Clarksville. TN Literature
Chester, E.W., B.E. Wofford, R. Kral, H.R. DeSelm, and A.M. Evans. 1993. Atlas of Tennessee vascular plants. 2 vols. Center for Field Biology Miscellaneous Publication No. 9/13. Austin Peay State University, Clarksville. TN Literature
Cholewa, Anita F. Personal communication. MN Literature
Clemants, Steven. Personal communication. CT, NJ, NY Literature
Clifton, G. Plumas County and Plumas National Forest flora (2001 Draft). Unpublished and undated. CA Literature
Cooperrider, T.S, A.W. Cusick, and J.T. Kartesz (eds.). 1999. Seventh catalog of the vascular plants of Ohio (in press). Ohio State University Press, Columbus. OH Literature
Cooperrider, T.S. 1982. Endangered and threatened plants of Ohio. Ohio Biological Survey Notes No. 16. Ohio State University, Columbus. OH Literature
Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren. 1972. Intermountain flora: Vascular plants of the Intermountain West. New York Botanical Garden, New York. NV, OR, UT Literature
Crovello, T.J., C.A. Keller, and J.T. Kartesz. 1983. The vascular plants of Indiana: A computer based checklist. University of Notre Dame Press, Notre Dame. IN Literature
Cullina, M.D., B. Connolly, B. Sorrie, and P. Somers. 2011. The vascular plants of Massachusetts: A county checklist, first revision. Massachusetts Natural Heritage & Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough. MA Literature
Cullina, M.D., B. Connolly, B. Sorrie, and P. Somers. 2011. The vascular plants of Massachusetts: A county checklist, first revision. Massachusetts Natural Heritage and Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough. MA Literature
D.B. Poindexter 08-789 (NCU 598309). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
D.E. Boufford s.n. (NCU 465543). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
Davis, R. 1952. Flora of Idaho. W.C. Brown Co., Dubuque. ID Literature
Deam, C.C. 1940. Flora of Indiana. Wm.B. Burford Printing Co., Indianapolis. IN Literature
Demaree, D. 1943. A catalog of the vascular plants of Arkansas. Taxodium 1: 1-88. AR Literature
District of Columbia Natural Heritage Program. DC Literature
Domangue, B.E., and C.K. McMullen. 2013. Floristic survey of the vascular plants of Shenandoah County, Virginia. Castanea 78: 312-322. VA Literature
Dorn, R.D. 1977. Manual of the vascular plants of Wyoming. 2 vols. Garland Publishing, Inc., New York. WY Literature
Dorn, R.D. 1984. Vascular plants of Montana. Mountain West Publishers, Cheyenne. MT Literature
Dowhan, J.J. 1979. Preliminary checklist of the vascular flora of Connecticut (growing without cultivation). State Geological and Natural History Survey of Connecticut, Natural Resources Center, Department of Environmental Protection. Hartford. CT Literature
Duncan, W.H., and J.T. Kartesz. 1981. Vascular flora of Georgia. University of Georgia Press, Athens. GA Literature
E.M. Bush sn (NCU 492506). Specimen at University of North Carolina, Chapel Hill, North Carolina. WV Specimen
E.P. Kruschke K-47-19 (NCU 502631). Specimen at University of North Carolina, Chapel Hill, North Carolina. WI Specimen
E.P. Kruschke K-48-22 (NCU 620682). Specimen at University of North Carolina, Chapel Hill, North Carolina. WI Specimen
E.P. Kruschke K-53-35 (NCU 620685). Specimen at University of North Carolina, Chapel Hill, North Carolina. WI Specimen
E.P. Kruschke K-72-17 (NCU 507266). Specimen at University of North Carolina, Chapel Hill, North Carolina. WI Specimen
EOSC. Specimen at Eastern Oregon University, Lagrande, Oregon. OR Specimen
Eilers, L.J., and D.M. Roosa. 1991. The vascular plants of Iowa. University of Iowa Press, Iowa City. IA Literature
F.C. Lane 3728 (NCU 303284). Specimen at University of North Carolina, Chapel Hill, North Carolina. MD Specimen
Fernald, M.L. 1950. Gray's manual of botany, 8th ed. American Book Company, New York. IL, MN, NC, NM, NY, OH, PA, WI Literature
Furlow, J.J. 1991. The vascular flora of Ohio: Vol. 2, Part 1 - Dicotyledoneae: Saururaceae through Fabaceae. Unpublished. OH Literature
G.B. Rossbach 5213 (NCU 243903). Specimen at University of North Carolina, Chapel Hill, North Carolina. ME Specimen
G.B. Rossbach 5299 (NCU 244376). Specimen at University of North Carolina, Chapel Hill, North Carolina. ME Specimen
G.S. Ramseur 521 (NCU 223511). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
G.S. Ramseur 5575 (NCU 295463). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
George, G.G. 1992. A synonymized checklist of the plants found growing in Rhode Island. Rhode Island Wild Plant Society. RI Literature
Glenn, S.D. (ed.). 2013. New York Metropolitan Flora database. New York Metropolitan Flora Project, Brooklyn Botanic Garden, New York. CT, NJ, NY Literature
Goldman, D.H. 1996. A preliminary vascular flora of the French Creek drainage of Western New York State. New York Flora Association Newsletter 7 (2): 3-12. NY Literature
Gordan, Ken. Personal communication. MS Literature
H.E. Ahles s.n. (NCU 252802). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
H.R. Totten s.n. (NCU 22556). Specimen at University of North Carolina, Chapel Hill, North Carolina. TN Specimen
Hannick, V.C., J.N. Mink, J.R. Singhurst, and W.C. Holmes. 2013. Annotated checklist of the vascular flora of McLennan County, Texas. Phytoneuron 2013-29(29): 1-37. TX Literature
Hartman, R. Atlas of the vascular flora of Wyoming. Unpublished and undated. WY Literature
Harvill, A.M., C.E. Stevens, and D.M.E. Ware. 1981. Atlas of the Virginia flora, Part II. Dicotyledons. Virginia Botanical Associates, Farmville. VA Literature
Hatch, S.L., K.N. Gandhi, and L.E. Brown. 1990. Checklist of the vascular plants of Texas (MP-1655). Texas Agricultural Experiment Station, College Station. TX Literature
Haynes, R. 1990. A database of the Alabama flora. Unpublished. AL Literature
Heil, K.D, and S.L. O'Kane, Jr. 2002. Catalog of the Four Corners flora - vascular plants of the San Juan River Drainage: Arizona, Colorado, New Mexico and Utah, 6th ed. NM Literature
Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley. CA Literature
Hitchcock, C.L., A. Cronquist, M. Ownbey, and J.W. Thompson. 1969. Vascular plants of the Pacific Northwest. 5 vols. University of Washington Press, Seattle. ID, OR, WA Literature
Hodgdon, A.R., and F.L. Steele. 1958. The woody plants of New Hampshire. University of New Hampshire Agricultural Experiment Station, Bulletin 447. NH Literature
Hogan, Tim. Personal communication. CO Literature
Hough, M.Y. 1978. New Jersey Wild Plants. Harmony Press, Harmony. NJ Literature
Hough, M.Y. Supplement to New Jersey Wild Plants. Published by the author. NJ Literature
House, H.D. 1924. Annotated list of the ferns and flowering plants of New York State. New York State Museum Bulletin No. 254. NY Literature
Hrusa, F., B. Ertter, A. Sanders, G. Leppig, and E. Dean. 2002. Catalog of non-native vascular plants occurring spontaneously in California beyond those addressed in The Jepson Manual. Part I. Madroño 49: 61-98. CA Literature
Hubbard, J.R., and W.S. Judd. 2013. Floristics of Silver River State Park, Marion County, Florida. Rhodora 115: 250-280. FL Literature
ID. Specimen at University of Idaho, Moscow, Idaho. ID Specimen
ID. Specimen at University of Idaho, Moscow, Idaho. ID Specimen
ID. Specimen at University of Idaho, Moscow, Idaho. ID Specimen
ID. Specimen at University of Idaho, Moscow, Idaho. ID Specimen
ID. Specimen at University of Idaho, Moscow, Idaho. ID Specimen
IDS. Specimen at Idaho State University, Pocatello, Idaho. ID Specimen
INVADERS database. MT, OR, WA Literature
Illinois Plant Information Network (ILPIN). IL Literature
Indiana Natural Heritage Data Center. 2013. Endangered, threatened, and rare vascular plants of Indiana (16 April 2013). Division of Nature Preserves, Indiana Department of Natural Resources, Indianapolis, IN. IN Literature
J.K. Moore 3126 (NCU 510853). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
J.R. Rohrer 1762 (NCU 500549). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
J.R. Watson s.n. (NCU 410959). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
Johnston, B. 1991. List of Colorado plants. Unpublished. CO Literature
Johnston, M.C. 1990. The vascular plants of Texas, 2d ed. Published by the author, Austin. MS, TX Literature
Jones, S.B., and N. Coile. 1988. The distribution of the vascular flora of Georgia. Herbarium, Department of Botany, Athens. GA Literature
K.W. Hunt s.n. (NCU 27647). Specimen at University of North Carolina, Chapel Hill, North Carolina. SC Specimen
K.W. Hunt & F. Martin s.n. (NCU NCU27647). Specimen at University of North Carolina, Chapel Hill, North Carolina. SC Specimen
Kartesz, J.T. 1988. A flora of Nevada. University of Nevada, Reno. NV Literature
Kartesz, J.T. 2001. Atlas of the Nevada flora. Unpublished. NV Literature
Kearney, T., and R.H. Peebles. 1960. Arizona flora with supplement. University of California Press, Los Angeles. AZ Literature
L.D. Melvin s.n. (NCU 252803). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
Lakela, O. 1965. A flora of northeastern Minnesota. University of Minnesota Press, Minneapolis. MN Literature
Lance, R.W. 2013. A new endemic species of Crataegus (Rosaceae) from western North Carolina. Phytoneuron 2013-98: 1-15. NC Literature
Lance, Ron. Personal communication. MS Literature
Layser, E.F. 1980. Flora of Pend Oreille County, Washington. Washington State University, Cooperative Extension, Pullman. WA Literature
Legler, B.S. 2010. Additions to the vascular flora of New Mexico. Journal of the Botanical Research Institute of Texas 4(2): 777-784. NM Literature
Lesica, P., G. Moore, K.M. Peterson, and J.H. Rumely. 1984. Vascular plants of limited distribution in Montana. Monograph No. 2. Montana Academy of Sciences, Supplement to the Proceedings, vol. 43. MT Literature
Little, E.L., Jr. 1971. Atlas of United States trees. Vols. 1-6 plus supplements. Miscellaneous Publication No. 1146. USDA Forest Service, Washington, DC. AL, DE, ID, IN, MD, MS, NE, NJ, OR, WA, WI Literature
Lowe, E.N. 1921. Plants of Mississippi. Mississippi State Geological Survey Bulletin No. 17. MS Literature
M. Smyth s.n. (NCU 77618). Specimen at University of North Carolina, Chapel Hill, North Carolina. VA Specimen
M.S. Baxter s.n. (NCU 24026). Specimen at University of North Carolina, Chapel Hill, North Carolina. NY Specimen
MacRoberts, D.T. 1988. A documented checklist and atlas of the vascular flora of Louisiana. Louisiana State University at Shreveport, Shreveport. LA Literature
Magee, D. Flora of New England. Unpublished and undated. CT, MA, ME, NH, NY, RI, VT Literature
Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits. Dover Publications, New York. Literature
Martin, W.C., and C.R. Hutchins. 1980. A flora of New Mexico. Strauss & Cramer, Germany. NM Literature
Massey, A.B. 1961. Virginia Flora. Virginia Agricultural Experiment Station, Technical Bulletin 155. Blacksburg, VA. VA Literature
McAvoy, William. Personal communication. DE Literature
McCook, Lucile M. Personal communication. MS Literature
McGregor, R.L. Personal communication. KS Literature
McGregor, R.L., et al. 1977. Atlas of the flora of the Great Plains. Iowa State University Press, Ames. KS, ND, NE, OK, SD Literature
McGregor, R.L., et al. 1986. Flora of the Great Plains. University of Kansas Press, Lawrence. NC Literature
Medley, M.E. 1993. An annotated catalogue of the known or reported vascular flora of Kentucky. University of Louisville, Louisville. KY Literature
Medley, Max. Personal communication. KY Literature
Meyer, J. 1990. Chrysler Herbarium Checklist. Manuscript. NJ Literature
Mississippi Natural Heritage Program. MS Literature
Mitchell, R.S. (ed.). 1986. A checklist of New York State plants. Contributions of a Flora of New York State, Checklist III. New York State Bulletin No. 458. New York State Museum, Albany. NY Literature
Mohlenbrock, R.H. 1986. Guide to the vascular flora of Illinois, rev. ed. Southern Illinois University Press, Carbondale and Edwardsville. IL Literature
Mohlenbrock, R.H. Personal communication. IL Literature
Mohr., C. 1901. Plant life of Alabama. Contributions from the United States National Herbarium VI. AL Literature
Moore, J.W., R.M. Tryon, Jr. 1946. A preliminary check list of the flowering plants, ferns and fern allies of Minnesota. Department of Botany, University of Minnesota, Minneapolis. MN Literature
Myers, R.M. 1972. Annotated catalog and index for the Illinois flora. Western Illinois University Series in Biological Sciences, No. 10. Macomb. IL Literature
NMC. Specimen at New Mexico State University, Las Cruces, New Mexico. NM Specimen
NMC. Specimen at New Mexico State University, Las Cruces, New Mexico. NM Specimen
NMC. Specimen at New Mexico State University, Las Cruces, New Mexico. NM Specimen
NMC. Specimen at New Mexico State University, Las Cruces, New Mexico. TX Specimen
NMC. Specimen at New Mexico State University, Las Cruces, New Mexico. TX Specimen
New Jersey Natural Heritage Program. NJ Literature
New Mexico Natural Heritage Program. NM Literature
New Mexico Rare Plant Technical Council. 1999. New Mexico rare plants [online: accessed on 15 March 2002]. Albuquerque. NM Literature
New York Flora Association. 1990. Preliminary vouchered atlas of New York State flora, ed. 1. New York State Museum Institute, Albany. NY Literature
New York Flora Association. 2002. New York flora atlas database. Unpublished. New York State Museum Institute, Albany. NY Literature
New York Natural Heritage Program. NY Literature
O. M. Freeman 57213 (NCU 224039). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
Ohio Natural Heritage Database. OH Literature
Oregon Flora Project species list; species noted on herbarium specimens. Unpublished and undated. OR Literature
Ownbey, G.B., and T. Morley. 1991. Vascular plants of Minnesota: A checklist and atlas. University of Minnesota Press, Minneapolis. MN Literature
R. Bridgers s.n. (NCU 77708). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
R. Kral 10044 (NCU 165926). Specimen at University of North Carolina, Chapel Hill, North Carolina. VA Specimen
R. Lance 205 (NCU 585736). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
R. S. Leisner s.n. (NCU 252860). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
R.C. Clark 2577 (NCU 414357). Specimen at University of North Carolina, Chapel Hill, North Carolina. AL Specimen
R.D. Whetstone 5258 (NCU 487075). Specimen at University of North Carolina, Chapel Hill, North Carolina. AL Specimen
R.M. Downs 3518 (NCU 371191). Specimen at University of North Carolina, Chapel Hill, North Carolina. MD Specimen
R.M. Downs 9399 (NCU 372598). Specimen at University of North Carolina, Chapel Hill, North Carolina. MD Specimen
R.M. Downs sn (NCU 371792). Specimen at University of North Carolina, Chapel Hill, North Carolina. WV Specimen
R.S. Freer 17273 (NCU 415613). Specimen at University of North Carolina, Chapel Hill, North Carolina. VA Specimen
Radford, A.E., H.E. Ahles, and C.R. Bell. 1965. Atlas of the vascular flora of the Carolinas. Department of Botany Technical Bulletin No. 165. Chapel Hill. NC, SC Literature
Radford, A.E., H.E. Ahles, and C.R. Bell. 1968. Manual of the vascular flora of the Carolinas. University of North Carolina Press, Chapel Hill. MS, NC, SC, WV Literature
Ralph, R.A. Checklist of the vascular plants of the Coastal Plain of Delaware. Unpublished and undated. University of Delaware Department of Biology. DE Literature
Reed, R. 1987. Wisconsin vascular plants. Unpublished. WI Literature
Rhoads, A.F., and W.M. Klein, Jr. 1993. The vascular flora of Pennsylvania. Annotated checklist and atlas. American Philosophical Society, Philadelphia. PA Literature
Richards, C.D., F. Hyland, and L.M. Eastman. 1983. Revised check-list of the vascular plants of Maine. Bulletin of the Josselyn Botanical Society, No. 11. ME Literature
Ripley, J.D. 1994. Vegetation of the United States Air Force Academy and the adjacent Regions of the Pike National Forest, El Paso County, Colorado. Department of Biology, United States Air Force Academy, Colorado Springs. CO Literature
SOC. Specimen at Southern Oregon University, Ashland, Oregon. OR Specimen
SRP. Specimen at Boise State University, Boise, Idaho. ID Specimen
SRP. Specimen at Boise State University, Boise, Idaho. ID Specimen
Sargent, C.S. 1903. Recently recognized species of Crataegus in eastern Canada and New England,--III. Rhodora 5: 137-153. CT, MA Literature
Sargent, C.S. 1922. Manual of the trees of North America. Houghton Mifflin Company, Boston. AL, FL, ME, MS, NH, NY, PA Literature
Schaffner, J.H. 1932. Revised catalog of Ohio vascular plants. Ohio Biological Survey Bulletin 25. Ohio State University, Columbus. OH Literature
Seymour, F.C. 1969. The flora of New England. Charles E. Tuttle Company, Rutland. CT, MA, NH, RI Literature
Seymour, F.C. 1969. The flora of Vermont. Agricultural Experiment Station Bulletin No. 660. University of Vermont, Burlington. VT Literature
Sharp, A.J., R.E. Shanks, J.K. Underwood, and E. McGilliard. 1960. A preliminary checklist of monocots in Tennessee. Published by authors, University of Tennessee, Knoxville. TN Literature
Shetler, S.G., and S.S. Orli. 2000. Annotated checklist of the vascular plants of the Washington-Baltimore Area. Part 1: Ferns, fern allies, gymnosperms, and dicotyledons. Smithsonian Institution, Washington, DC. VA Literature
Shultz, Leila M. Personal communication. UT Literature
Smith, E.B. 1988. An atlas and annotated list of the vascular plants of Arkansas, 2d ed. AR Literature
Sorrie, B.A. 1992. County checklist of Massachusetts plants. Unpublished. MA Literature
Specimen Management System for California Herbaria (SMASCH). CA Literature
Specimen at Douglas County Museum, Roseburg, Oregon. OR Specimen
Specimen at Linfield College, McMinnville, Oregon. OR Specimen
St. John, H. 1963. Flora of southeastern Washington and adjacent Idaho, 3rd ed. Outdoor Pictures, Escondido. WA Literature
Steury, B.W. 2011. Additions to the vascular flora of the George Washington Memorial Parkway, Virginia, Maryland, and the District of Columbia. Banisteria 37: 3-20. VA Literature
Steyermark, J.A. 1963. Flora of Missouri. Iowa State University Press, Ames. IL, OK Literature
Strausbaugh, P.D., and E.L. Core. 1977. Flora of West Virginia, 2nd ed., 4 vols. West Virginia Bulletin, Morgantown. WV Literature
Straw, R. Jackson and Josephine County checklist. Unpublished and undated. OR Literature
Swink, F., and G. Wilhelm. 1994. Plants of the Chicago Region, eds. 1-4. Morton Arboretum, Lisle. WI Literature
T.G. Harbison s.n. (NCU 77983). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
TEX. Specimen at University of Texas, Austin, Texas. TX Specimen
Tatnall, E. 1860. Catalogue of the phaenogamous and filicoid plants of New Castle County, Delaware. Wilmington Institute, Wilmington. DE Literature
Tatnall, R.R. 1946. Flora of Delaware and the Eastern Shore. Society of Natural History of Delaware, Lancaster. DE Literature
Taylor, R.J., and C.E.S. Taylor. 1989. An annotated list of the ferns, fern allies, gymnosperms and flowering plants of Oklahoma. Southeast Oklahoma State University. OK Literature
Texas A&M Bioinformatics Working Group. Texas A&M Bioinformatics Working Group Internet site. TX Literature
Thomas, R.D., and C.M. Allen. 1993. Atlas of the vascular flora of Louisiana, vols. 1-3. Louisiana Department of Wildlife and Fisheries. Natural Heritage Program, Fort Worth, TX. LA Literature
Thomas, R.D., and C.M. Allen. 1997. Atlas of the vascular flora of Louisiana, vols. 1-3 (Plus updates). Louisiana Department of Wildlife and Fisheries. Natural Heritage Program, Baton Rouge. LA Literature
Thompson, Sue. Personal communication. PA Literature
UNM. Specimen at University of New Mexico, Albuquerque, New Mexico. NM Specimen
UNM. Specimen at University of New Mexico, Albuquerque, New Mexico. NM Specimen
UNM. Specimen at University of New Mexico, Albuquerque, New Mexico. NM Specimen
Voss, E.G. 1985. Michigan flora. Cranbrook Institute of Science, Bloomfield Hills. MI Literature
W. Whetstone 72 (NCU 403671). Specimen at University of North Carolina, Chapel Hill, North Carolina. GA Specimen
W.R. Smith 27582 (NCU 587567). Specimen at University of North Carolina, Chapel Hill, North Carolina. MN Specimen
W.W. Ashe 69 (NCU 386122). Specimen at University of North Carolina, Chapel Hill, North Carolina. WV Specimen
W.W. Ashe s.n. (NCU 577972). Specimen at University of North Carolina, Chapel Hill, North Carolina. NC Specimen
W.W. Eggleston 4211 (NCU 578485). Specimen at University of North Carolina, Chapel Hill, North Carolina. TN Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WS. Specimen at Washington State University, Pullman, Washington. WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington. WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington. WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington. WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington. WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington. WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington. WA Specimen
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