| Documentation |
State |
Type |
| 1979. Journal of the Tennessee Academy of Science. |
TN |
Literature |
| Alabama Natural Heritage Program. |
AL |
Literature |
| Campbell, Julian. Personal communication. |
KY |
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 |
| Deam, C.C. 1940. Flora of Indiana. Wm.B. Burford Printing Co., Indianapolis. |
IN |
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 |
| Endangered Species Protection Board. 1999. Endangered and threatened species list (20 October 2002). Illinois Department of Natural Resources, Illinois. |
|
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 |
| Indiana Natural Heritage Data Center. |
IN |
Literature |
| Kentucky State Nature Preserves Commission. 2000. Endangered, threatened, and special concern species (20 October 2002). Kentucky State Nature Preserves Commission, Kentucky. |
|
Literature |
| Medley, M.E. 1993. An annotated catalogue of the known or reported vascular flora of Kentucky. Ph.D. Dissertation. University of Louisville, Louisville. |
KY |
Literature |
| Mohlenbrock, R.H. 1986. Guide to the vascular flora of Illinois, rev. ed. Southern Illinois University Press, Carbondale and Edwardsville. |
IL |
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 |
| Tennessee Natural Heritage Program. 2002. Rare plant list (20 October 2002). Department of Environment and Conservation, Tennessee. |
|
Literature |
| Wherry, E.T., J.M. Fogg, and H.A. Wahl. 1979. Atlas of the flora of Pennsylvania. Morris Arboretum, Philadelphia. |
PA |
Literature |