| 1 | Native | Northern America | Eastern Canada | Canada | New Brunswick | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Eastern Canada | Canada | Newfoundland and Labrador | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | Eastern Canada | Canada | Nova Scotia | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 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 | Prince Edward Island | | 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 | | Jones, G. N. & G. D. Fuller. 1955. Vascular plants of Illinois. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Iowa | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Minnesota | | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | 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 | | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | Maine | | 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 | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Hampshire | | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Ohio | | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | Vermont | | 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 | possibly | |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Oregon | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Washington | | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | | 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=879 | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Tennessee | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Virginia | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Gómez-Pompa, A. & V. Sosa, eds. 1978-. Flora de Veracruz. |
| 1 | Native | Northern America | Western Canada | Canada | Manitoba | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |