| 2 | Cultivated | | | | | widely cult. | Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening |
| 4 | Naturalized | Africa | Northern Africa | Morocco | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Asia-Temperate | Western Asia | Turkey | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Eastern Europe | Ukraine | Krym | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Middle Europe | Belgium | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Middle Europe | Germany | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Middle Europe | Netherlands | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Middle Europe | Poland | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Middle Europe | Switzerland | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Northern Europe | Ireland | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Northern Europe | United Kingdom | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southeastern Europe | Albania | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southeastern Europe | Croatia | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southeastern Europe | Greece | | w. | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southeastern Europe | Italy | | incl. Sardinia, Sicily | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southeastern Europe | Montenegro | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southeastern Europe | Slovenia | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southwestern Europe | France | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southwestern Europe | Portugal | | | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Europe | Southwestern Europe | Spain | | incl. Baleares | Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae. |
| 4 | Naturalized | Northern America | Eastern Canada | Canada | Québec | | FNA Editorial Committee. 1993-. Flora of North America. |
| 4 | Naturalized | Northern America | Southwestern U.S.A. | United States | California | | FNA Editorial Committee. 1993-. Flora of North America. |
| 4 | Naturalized | Northern America | Subarctic America | Canada | Yukon | | FNA Editorial Committee. 1993-. Flora of North America. |
| 4 | Naturalized | Northern America | Western Canada | Canada | British Columbia | | FNA Editorial Committee. 1993-. Flora of North America. |
| 4 | Naturalized | Southern America | Western South America | Ecuador | Tungurahua | | Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75 |
| 6 | Other | | | | | probably arose via ancient artifical hybridization in Greece | |