Doubtfully present in:
Czechoslovakia,
Poland
Native to:
Alaska,
Alberta,
Aleutian Is.,
Altay,
Amur,
Austria,
Baltic States,
Belarus,
British Columbia,
Bulgaria,
Buryatiya,
Central European Russia,
Chita,
Connecticut,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Greenland,
Iceland,
Idaho,
Inner Mongolia,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manchuria,
Massachusetts,
Michigan,
Minnesota,
Mongolia,
Montana,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North European Russia,
Northwest European Russia,
Northwest Territories,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Pennsylvania,
Primorye,
Québec,
Sakhalin,
Saskatchewan,
South European Russia,
Sweden,
Switzerland,
Tuva,
Ukraine,
Vermont,
Washington,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yukon
Extinct in:
Great Britain