| 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 | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | n.e. | |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Iowa | | |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Kansas | e. | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Minnesota | | |
| 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 | e. | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the 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). 1977. Atlas of the 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). 1977. Atlas of the 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 | | Deam, C. C. 1940. Flora of Indiana. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Maine | s. | |
| 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 | | |
| 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 | Northeastern U.S.A. | United States | West Virginia | | Strausbaugh, T. D. & E. L. Core. 1978. Flora of West Virginia, ed. 2. |
| 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 | Georgia | | 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 | 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 | 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 | Subarctic America | Canada | Northwest Territories | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Western Canada | Canada | Alberta | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Western Canada | Canada | British Columbia | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Western Canada | Canada | Manitoba | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Western Canada | Canada | Saskatchewan | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |