| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Iowa | | Eilers, L. J. & D. M. Roosa. 1994. The vascular plants of Iowa |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Kansas | e. | McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Missouri | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Nebraska | e. | McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Oklahoma | | McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Wisconsin | | Wetter, M. A. et al. WISFLORA: Wisconsin vascular plant species (on-line resource). |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Connecticut | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Indiana | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Massachusetts | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Michigan | s. | Voss, E. 1972-. Michigan flora. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Jersey | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New York | s. | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Ohio | | Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967-. The vascular flora of Ohio. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Pennsylvania | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Rhode Island | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | West Virginia | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Tamaulipas | | Correll, D. S. & M. C. Johnston. 1970. Manual of the vascular plants of Texas |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | | Diggs, G. M., Jr. et al. 1999. Shinner's and Mahler's illustrated flora of North Central Texas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Arkansas | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Delaware | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Florida | http://www.plantatlas.usf.edu/main.asp?plantID=3171 | Wunderlin, R. & B. Hansen. Atlas of Florida vascular plants (on-line resource). |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Georgia | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Kentucky | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Louisiana | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Maryland | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Mississippi | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | North Carolina | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | South Carolina | | Townsend, J., ed. South Carolina plant atlas (on-line resource). |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Tennessee | | Wofford, B. E. Database of Tennessee vascular plants (on-line resource). |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Virginia | | FNA Editorial Committee. 1993-. Flora of North America. |