| Documentation |
State |
Type |
| 1920. Torreya. |
OR |
Literature |
| 2000. CalFlora: Information on California plants for education, research and conservation. The CalFlora Database, Berkeley. |
CA |
Literature |
| Brouillet, L., F. Coursol, and M. Favreau. 2006. VASCAN. The database of Canadian vascular plants. Herbier Marie-Victorin, Institut de recherche en biologie végétale, Université de Montréal. |
ON |
Literature |
| Brown, M.L., and R.G. Brown. 1984. Herbaceous plants of Maryland. Port City Press, Inc., Baltimore. |
MD |
Literature |
| Bureau of Farm Products & Plant Industries. Massachusetts prohibited plant list (23 January 2006). Massachusetts Department of Agricultural Resources, Massachusetts. |
|
Literature |
| Fernald, M.L. 1950. Gray's manual of botany, 8th ed. American Book Company, New York. |
WV |
Literature |
| George, G.G. 1992. A synonymized checklist of the plants found growing in Rhode Island. Rhode Island Wild Plant Society. |
RI |
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 |
| Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley. |
CA |
Literature |
| Hogan, Tim. Personal communication. |
CO |
Literature |
| Johnston, B. 1991. List of Colorado plants. Unpublished. |
CO |
Literature |
| Magee, D. Flora of New England. Unpublished and undated. |
CT, MA, RI |
Literature |
| Meyer, J. 1990. Chrysler Herbarium Checklist. Manuscript. |
NJ |
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 |
| New York Flora Association. 1990. Preliminary vouchered atlas of New York State flora, ed. 1. New York State Museum Institute, Albany. |
NY |
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 Unpublished and undated.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 |
| Rhoads, A.F., and W.M. Klein, Jr. 1993. The vascular flora of Pennsylvania. Annotated checklist and atlas. American Philosophical Society, Philadelphia. |
PA |
Literature |
| Sorrie, B.A. 1992. County checklist of Massachusetts plants. Unpublished. |
MA |
Literature |
| Specimen Management System for California Herbaria (SMASCH). |
CA |
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 |
| Voss, E.G. 1985. Michigan flora. Cranbrook Institute of Science, Bloomfield Hills. |
MI |
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 |
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