| Documentation |
State |
Type |
| 1964. American Midland Naturalist. |
DC |
Literature |
| 1999. University of Minnesota Herbarium: Vascular plant collection. |
MN |
Literature |
| Atwood, J.T., et al. 1973. Check list of Vermont plants. Vermont Botanical and Bird Club. |
VT |
Literature |
| Cooperrider, T.S. 1995. The Dicotyledoneae of Ohio. Part 2: Linaceae through Campanulaceae. Ohio State University Press, Columbus. |
OH |
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 |
| Deam, C.C. 1940. Flora of Indiana. Wm.B. Burford Printing Co., Indianapolis. |
IN |
Literature |
| 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. |
|
Literature |
| Division of Nature Preserves. 2002. Endangered, threatened, and rare vascular plant species documented from Indiana (20 October 2002). Indiana Department of Natural Resources, Indiana. |
|
Literature |
| Eilers, L.J., and D.M. Roosa. 1991. The vascular plants of Iowa. University of Iowa Press, Iowa City. |
IA |
Literature |
| Gleason, H.A. 1963. The New Britton and Brown illustrated flora of the northeastern United States and adjacent Canada. Hafner Publishing Co., Inc., New York. |
PA |
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 |
| Illinois Plant Information Network (ILPIN). |
IL |
Literature |
| Magee, D. Flora of New England. Unpublished and undated. |
VT |
Literature |
| Mohlenbrock, R.H. 1986. Guide to the vascular flora of Illinois, rev. ed. Southern Illinois University Press, Carbondale and Edwardsville. |
IL |
Literature |
| Ohio Natural Heritage Database. |
OH |
Literature |
| Ownbey, G.B., and T. Morley. 1991. Vascular plants of Minnesota: A checklist and atlas. University of Minnesota Press, Minneapolis. |
MN |
Literature |
| Reed, R. 1987. Wisconsin vascular plants. Unpublished. |
WI |
Literature |
| U.S. Fish and Wildlife Service. 1988. National list of vascular plant species that occur in wetlands. U.S. Fish & Wildlife Service Biological Report 88 (26.9). |
|
Literature |
| Wisconsin vascular plants. Wisconsin State Herbarium: University of Wisconsin - Madison. |
WI |
Literature |