Native to:
Alaska,
Alberta,
Aleutian Is.,
Altay,
Austria,
British Columbia,
Bulgaria,
Buryatiya,
China North-Central,
China South-Central,
Chita,
Colorado,
Czechoslovakia,
East European Russia,
East Himalaya,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greenland,
Iceland,
Idaho,
Irkutsk,
Italy,
Japan,
Kamchatka,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Manitoba,
Mongolia,
Montana,
Nepal,
New Mexico,
Newfoundland,
North Caucasus,
North European Russi,
Northwest Territorie,
Norway,
Nunavut,
Ontario,
Pakistan,
Poland,
Primorye,
Qinghai,
Québec,
Romania,
Sakhalin,
Saskatchewan,
Spain,
Svalbard,
Sweden,
Switzerland,
Tadzhikistan,
Tibet,
Transcaucasus,
Tuva,
Ukraine,
Utah,
Uzbekistan,
West Himalaya,
West Siberia,
Wyoming,
Xinjiang,
Yakutskiya,
Yukon