| 1 | Native | Asia-Temperate | Western Asia | Turkey | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Latvia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Lithuania | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Moldova | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Russian Federation | Kaliningrad | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Ukraine | Krym | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Middle Europe | Austria | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Middle Europe | Belgium | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Middle Europe | Czech Republic | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Middle Europe | Germany | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Middle Europe | Hungary | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Middle Europe | Netherlands | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Middle Europe | Poland | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Middle Europe | Slovakia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Middle Europe | Switzerland | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Southeastern Europe | Bulgaria | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Southeastern Europe | Croatia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Greece | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Italy | | incl. Sicily | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Romania | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Southeastern Europe | Serbia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Slovenia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southwestern Europe | France | | incl. Corsica | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southwestern Europe | Portugal | | | Tutin, T. G. et al., eds. 1964-1980. Flora europaea. |
| 1 | Native | Europe | Southwestern Europe | Spain | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 2 | Cultivated | | | | | also cult. | |
| 4 | Naturalized | Asia-Temperate | China | China | Jiangsu Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 4 | Naturalized | Australasia | New Zealand | New Zealand | | | Allan, H. H. B. et al. 1961-. Flora of New Zealand. |
| 4 | Naturalized | Europe | Eastern Europe | Estonia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Northern Europe | Ireland | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Northern Europe | Norway | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Northern Europe | Sweden | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Northern Europe | United Kingdom | | | |
| 4 | Naturalized | Europe | Southeastern Europe | Bulgaria | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Northern America | Eastern Canada | Canada | New Brunswick | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 4 | Naturalized | Northern America | Eastern Canada | Canada | Nova Scotia | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 4 | Naturalized | Northern America | Eastern Canada | Canada | Ontario | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 4 | Naturalized | Northern America | Eastern Canada | Canada | Québec | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 4 | Naturalized | Northern America | North-Central U.S.A. | United States | Illinois | | Mohlenbrock, R. H. & D. M. Ladd. 1978. Distribution of Illinois vascular plants |
| 4 | Naturalized | Northern America | North-Central U.S.A. | United States | Iowa | | Eilers, L. J. & D. M. Roosa. 1994. The vascular plants of Iowa |
| 4 | Naturalized | 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. |
| 4 | Naturalized | Northern America | North-Central U.S.A. | United States | Missouri | | Yatskievych, G. 1999-. Steyermark's Flora of Missouri, revised edition |
| 4 | Naturalized | 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. |
| 4 | Naturalized | Northern America | North-Central U.S.A. | United States | Wisconsin | | Wetter, M. A. et al. WISFLORA: Wisconsin vascular plant species (on-line resource). |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Connecticut | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Indiana | | Deam, C. C. 1940. Flora of Indiana. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Maine | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Massachusetts | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Michigan | | Voss, E. 1972-. Michigan flora. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | New Hampshire | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | New Jersey | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | New York | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | 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. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Pennsylvania | | Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Rhode Island | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | Vermont | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 4 | Naturalized | Northern America | Northeastern U.S.A. | United States | West Virginia | | Harmon, P. J. et al. 2006. Checklist and atlas of the vascular flora of West Virginia. |
| 4 | Naturalized | Northern America | South-Central U.S.A. | United States | Texas | | Correll, D. S. & M. C. Johnston. 1970. Manual of the vascular plants of Texas |
| 4 | Naturalized | Northern America | Southeastern U.S.A. | United States | Florida | | Wunderlin, R. & B. Hansen. Atlas of Florida vascular plants (on-line resource). |
| 4 | Naturalized | Northern America | Southeastern U.S.A. | United States | Georgia | | Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. |
| 4 | Naturalized | Northern America | Southeastern U.S.A. | United States | Maryland | | Brown, R. G. & M. L. Brown. 1984. Herbaceous plants of Maryland |
| 4 | Naturalized | Northern America | Southeastern U.S.A. | United States | North Carolina | | Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. |
| 4 | Naturalized | Northern America | Southeastern U.S.A. | United States | Tennessee | | Chester, E. W. et al. 1993-1997. Atlas of Tennessee vascular plants. |
| 4 | Naturalized | Northern America | Southeastern U.S.A. | United States | Virginia | | Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. |
| 4 | Naturalized | Northern America | Western Canada | Canada | British Columbia | s.w. | Douglas, G. W. et al., eds. 1999. Illustrated flora of British Columbia. |