Native to:
Alaska,
Albania,
Alberta,
Altay,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Central European Rus,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Greenland,
Hungary,
Iceland,
Inner Mongolia,
Iran,
Ireland,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Korea,
Krasnoyarsk,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Michigan,
Minnesota,
Mongolia,
Montana,
Netherlands,
New Brunswick,
New Hampshire,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Poland,
Primorye,
Québec,
Romania,
Saskatchewan,
South European Russi,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Ukraine,
Washington,
West Himalaya,
West Siberia,
Wisconsin,
Yakutskiya,
Yugoslavia,
Yukon