Native to:
Afghanistan,
Alaska,
Albania,
Alberta,
Altay,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
California,
Central European Russia,
China South-Central,
Colorado,
Corse,
Cyprus,
Czechoslovakia,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greece,
Greenland,
Hungary,
Iceland,
Idaho,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Khabarovsk,
Krasnoyarsk,
Krym,
Labrador,
Maine,
Michigan,
Montana,
Morocco,
Nepal,
Netherlands,
Nevada,
New Brunswick,
New York,
Newfoundland,
North Caucasus,
North European Russia,
Northwest European Russia,
Northwest Territories,
Norway,
Nova Scotia,
Ontario,
Oregon,
Pakistan,
Poland,
Québec,
Romania,
Sakhalin,
South Dakota,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tibet,
Transcaucasus,
Turkey,
Tuva,
Ukraine,
Utah,
Vermont,
Washington,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon