Native to:
Alaska,
Alberta,
Aleutian Is.,
Altay,
Baltic States,
Belarus,
British Columbia,
Buryatiya,
Central European Rus,
Chita,
Colorado,
Czechoslovakia,
Denmark,
East European Russia,
East Himalaya,
Finland,
Føroyar,
Germany,
Great Britain,
Greenland,
Iceland,
Idaho,
Illinois,
Inner Mongolia,
Ireland,
Irkutsk,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Krasnoyarsk,
Kuril Is.,
Magadan,
Minnesota,
Mongolia,
Montana,
Nebraska,
Netherlands,
New Jersey,
New York,
Newfoundland,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Ontario,
Oregon,
Poland,
Primorye,
Québec,
Romania,
Sakhalin,
Saskatchewan,
Sweden,
Tadzhikistan,
Tibet,
Tuva,
Ukraine,
Utah,
Vermont,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya
Introduced into:
Alabama