| Documentation |
State |
Type |
| 1959. Madroño. |
OR |
Literature |
| 1977. Sida. |
NE |
Literature |
| 1999. University of Minnesota Herbarium: Vascular plant collection. |
MN |
Literature |
| 2001. Rhodora. |
NH |
Literature |
| Atwood, J.T., et al. 1973. Check list of Vermont plants. Vermont Botanical and Bird Club. |
VT |
Literature |
| Barkworth, Mary E. Personal communication. |
DE |
Literature |
| Bowen, Carol. 26 August 2002. Field observation validated by NPDC staff. |
MI |
Observation |
| 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. |
BC, NB, NS, ON, QC |
Literature |
| Brown, M.L., and R.G. Brown. 1984. Herbaceous plants of Maryland. Port City Press, Inc., Baltimore. |
MD |
Literature |
| Campbell, J., and M. Medley. 2012. The atlas of vascular plants in Kentucky. |
KY |
Literature |
| Campbell, Julian. Personal communication. |
KY |
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 |
| Clemants, Steven. Personal communication. |
NJ, NY |
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 |
| Deam, C.C. 1940. Flora of Indiana. Wm.B. Burford Printing Co., Indianapolis. |
IN |
Literature |
| Dees, Susan. March 2004. Field observation validated by NPDC staff. |
IL |
Observation |
| Domangue, B.E., and C.K. McMullen. 2013. Floristic survey of the vascular plants of Shenandoah County, Virginia. Castanea 78: 312-322. |
VA |
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 |
| 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 |
| Evans, Jeffrey A. 3 November 2004. Field observation validated by NPDC staff. |
MI |
Observation |
| Evans, Jeffrey A. 5 June 2004. Field observation validated by NPDC staff. |
MI |
Observation |
| Evans, Jeffrey A. 5 November 2004. Field observation validated by NPDC staff. |
MI |
Observation |
| Evans, Jeffrey A. 9 July 2004. Field observation validated by NPDC staff. |
MI |
Observation |
| Freeman, Craig C. Personal communication. |
GA |
Literature |
| Frey, Mark. Personal communication. |
WA |
Literature |
| Furlow, J.J. 1991. The vascular flora of Ohio: Vol. 2, Part 1 - Dicotyledoneae: Saururaceae through Fabaceae. Unpublished. |
OH |
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 |
| 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 |
| Heutte (ALA V0154181). Specimen at University of Alaska Museum, Fairbanks, Alaska. |
AK |
Specimen |
| Hogan, Tim. Personal communication. |
CO |
Literature |
| Hough, M.Y. 1978. New Jersey Wild Plants. Harmony Press, Harmony. |
NJ |
Literature |
| Illinois Plant Information Network (ILPIN). |
IL |
Literature |
| Johnston, B. 1991. List of Colorado plants. Unpublished. |
CO |
Literature |
| Magee, D. Flora of New England. Unpublished and undated. |
CT, MA, ME, NY, VT |
Literature |
| McGregor, R.L., et al. 1977. Atlas of the flora of the Great Plains. Iowa State University Press, Ames. |
KS, ND |
Literature |
| Medley, M.E. 1993. An annotated catalogue of the known or reported vascular flora of Kentucky. University of Louisville, Louisville. |
KY |
Literature |
| Meyer, J. 1990. Chrysler Herbarium Checklist. Manuscript. |
NJ |
Literature |
| Meyers-Rice, Barry. Personal communication. |
AK |
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 |
| New York Flora Association. 1990. Preliminary vouchered atlas of New York State flora, ed. 1. New York State Museum Institute, Albany. |
NY |
Literature |
| Ownbey, G.B., and T. Morley. 1991. Vascular plants of Minnesota: A checklist and atlas. University of Minnesota Press, Minneapolis. |
MN |
Literature |
| 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 |
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. |
NC |
Literature |
| Rayner, D.E., C. Aulbach-Smith., et al. South Carolina plant atlas. |
SC |
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 |
| Shultz, Leila M. Personal communication. |
UT |
Literature |
| Simpson, C., J. Koenig, R. Love, B. Newhouse, N. Otting, S. Sundberg, D. Wagner, and P. Warner. 2002. Vascular plants of Lane County, Oregon. Native Plant Society of Oregon. |
OR |
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 |
| Strausbaugh, P.D., and E.L. Core. 1977. Flora of West Virginia, 2nd ed., 4 vols. West Virginia Bulletin, Morgantown. |
WV |
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 |
| The Nature Conservancy. Invasives on the Web. |
ID |
Literature |
| US. Specimen at Smithsonian Institution, Washington, District of Columbia. |
DC |
Specimen |
| Vickery, John. 3 June 2007. Field observation validated by NPDC staff. |
CO |
Observation |
| Voss, E.G. 1985. Michigan flora. Cranbrook Institute of Science, Bloomfield Hills. |
MI |
Literature |
| WTU. Specimen at University of Washington, Seattle, Washington. |
WA |
Specimen |
| Weishaupt, C.G. 1971. Vascular plants of Ohio. Kendall/Hunt Publishing Co., Dubuque. |
OH |
Literature |
| Welsh, S.L., N.D. Atwood, L.C. Higgins, and S. Goodrich. 1987. A Utah flora. Great Basin Naturalist Memoirs No. 9. Brigham Young University Press, Provo. |
UT |
Literature |
| West Virginia county level data. |
WV |
Literature |
| Wherry, E.T., J.M. Fogg, and H.A. Wahl. 1979. Atlas of the flora of Pennsylvania. Morris Arboretum, Philadelphia. |
PA |
Literature |
| Wisconsin vascular plants. Wisconsin State Herbarium: University of Wisconsin - Madison. |
WI |
Literature |
| Yatskievych, G., and J. Turner. 1990. Catalogue of the flora of Missouri. Monographs in Systematic Botany from the Missouri Botanical Garden 37. Missouri Botanical Garden, St. Louis. |
MO |
Literature |
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