Native to:
Alaska,
Albania,
Alberta,
Aleutian Is.,
Altay,
Austria,
British Columbia,
Bulgaria,
Buryatiya,
California,
Central European Rus,
Colorado,
Corse,
Czechoslovakia,
East Himalaya,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Greenland,
Iceland,
Idaho,
Irkutsk,
Italy,
Japan,
Kamchatka,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Mongolia,
Montana,
Nevada,
New Hampshire,
New Mexico,
Newfoundland,
North Caucasus,
North European Russi,
Northwest Territorie,
Norway,
Nunavut,
Oregon,
Poland,
Portugal,
Québec,
Romania,
Spain,
Svalbard,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Tuva,
Ukraine,
Utah,
Washington,
West Himalaya,
West Siberia,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon