Native to:
Alaska,
Alberta,
Aleutian Is.,
Amur,
Austria,
Baltic States,
Belarus,
British Columbia,
Buryatiya,
Central European Rus,
China South-Central,
China Southeast,
Chita,
Czechoslovakia,
East European Russia,
East Himalaya,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greenland,
Iceland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Manchuria,
Manitoba,
Michigan,
Minnesota,
Mongolia,
Montana,
Nepal,
Newfoundland,
North Carolina,
North European Russi,
Northwest Territorie,
Norway,
Nunavut,
Ontario,
Poland,
Primorye,
Québec,
Romania,
Sakhalin,
Saskatchewan,
South Carolina,
Spain,
Svalbard,
Sweden,
Switzerland,
Ukraine,
West Siberia,
Yakutskiya,
Yugoslavia,
Yukon