Native to:
Alaska,
Alberta,
Aleutian Is.,
Altay,
Baltic States,
Belarus,
British Columbia,
Buryatiya,
Central European Russia,
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 Russia,
Northwest European Russia,
Northwest Territories,
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