| 1 | Native | Asia-Temperate | Caucasus | Russian Federation-Ciscaucasia | Ciscaucasia | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Asia-Temperate | Russian Far East | Russian Federation-Far East | Far East | | Komarov, V. L. et al., eds. 1934-1964. Flora SSSR. |
| 1 | Native | Asia-Temperate | Siberia | Russian Federation-Eastern Siberia | Eastern Siberia | | Komarov, V. L. et al., eds. 1934-1964. Flora SSSR. |
| 1 | Native | Asia-Temperate | Siberia | Russian Federation-Western Siberia | Western Siberia | | Komarov, V. L. et al., eds. 1934-1964. Flora SSSR. |
| 1 | Native | Europe | Eastern Europe | Belarus | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Estonia | | | 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 | Russian Federation-European part | European part | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Eastern Europe | Ukraine | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Middle Europe | Austria | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 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 | Netherlands | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Middle Europe | Poland | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 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 | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | Denmark | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | Finland | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | Iceland | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | Ireland | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | Norway | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | Sweden | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Northern Europe | United Kingdom | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Albania | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Bulgaria | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 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 | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | North Macedonia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southeastern Europe | Romania | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 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 | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Europe | Southwestern Europe | Spain | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Northern America | Eastern Canada | Canada | New Brunswick | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Eastern Canada | Canada | Newfoundland and Labrador | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Eastern Canada | Canada | Nova Scotia | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Eastern Canada | Canada | Ontario | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Eastern Canada | Canada | Prince Edward Island | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Eastern Canada | Canada | Québec | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | n. | FNA Editorial Committee. 1993-. Flora of North America. |
| 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 | North Dakota | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | South Dakota | w. | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Wisconsin | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 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 | n. | 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 | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | 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. |
| 1 | Native | 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. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Ohio | n. | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Pennsylvania | n. | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | 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. |
| 1 | Native | 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. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Colorado | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Idaho | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Montana | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Oregon | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Washington | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Wyoming | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | New Mexico | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 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 | Virginia | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Arizona | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | California | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Nevada | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Utah | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Subarctic America | Canada | Northwest Territories | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Subarctic America | Canada | Yukon | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Subarctic America | United States | Alaska | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Western Canada | Canada | Alberta | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Western Canada | Canada | British Columbia | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Western Canada | Canada | Manitoba | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Western Canada | Canada | Nunavut | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Western Canada | Canada | Saskatchewan | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Southern America | Central America | Guatemala | | | Luteyn, J. L. et al. 1995. Ericaceae - Part II. The superior-ovaried genera (Monotropoideae. Pyroloideae, Rhododendroideae. and Vaccinioideae p.p.). Fl. Neotrop. Monogr. 66:143. Note: mentions |
| 2 | Cultivated | | | | | also cult. elsewhere | |
| 2 | Cultivated | Europe | Middle Europe | Czech Republic | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |
| 2 | Cultivated | Europe | Middle Europe | Slovakia | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |