| 1 | Native | Northern America | Eastern Canada | Canada | Ontario | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Eastern Canada | Canada | Québec | s. | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | | |
| 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 | | 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 | Minnesota | | Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Missouri | | Steyermark, J. A. 1977. Flora of Missouri. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Nebraska | | 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 | North Dakota | | 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 | South Dakota | | 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 | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Connecticut | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Indiana | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Maine | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Massachusetts | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Michigan | | Voss, E. 1972-. Michigan flora. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Hampshire | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Jersey | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New York | | |
| 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 | | Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Rhode Island | | |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Vermont | | |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Montana | e. | Dorn, R. D. 1984. Vascular plants of Montana |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Wyoming | e. | Dorn, R. D. 1977. Manual of the vascular plants of Wyoming |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | | Correll, D. S. & M. C. Johnston. 1970. Manual of the vascular plants of Texas |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | n. | |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Arkansas | | Smith, E. B. 1978. An atlas and annotated list of the vascular plants of Arkansas |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Delaware | | |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Georgia | n. | Duncan, W. H. & J. T. Kartesz. 1981. Vascular flora of Georgia: an annotated checklist. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Kentucky | | |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Maryland | | Brown, R. G. & M. L. Brown. 1972. Woody plants of Maryland |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Mississippi | n. | |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | North Carolina | w. | Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | South Carolina | | Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. |
| 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 | | |
| 1 | Native | Northern America | Western Canada | Canada | Manitoba | s. | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Western Canada | Canada | Saskatchewan | s.e. | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 2 | Cultivated | | | | | also cult. | |