Native to:
Afghanistan,
Alaska,
Albania,
Alberta,
Aleutian Is.,
Altay,
Amur,
Arizona,
Austria,
Baltic States,
British Columbia,
Bulgaria,
Buryatiya,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Czechoslovakia,
East European Russia,
East Himalaya,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greenland,
Iceland,
Idaho,
Inner Mongolia,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Michigan,
Minnesota,
Mongolia,
Montana,
Myanmar,
Nepal,
Nevada,
New Brunswick,
New Hampshire,
New Mexico,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nunavut,
Ontario,
Oregon,
Pakistan,
Poland,
Primorye,
Qinghai,
Québec,
Romania,
Sakhalin,
Saskatchewan,
South Dakota,
Spain,
Svalbard,
Sweden,
Switzerland,
Tadzhikistan,
Thailand,
Tibet,
Transcaucasus,
Tuva,
Ukraine,
Utah,
Vermont,
Washington,
West Himalaya,
West Siberia,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon
Extinct in:
Denmark