Doubtfully present in:
Baltic States
Native to:
Alaska,
Albania,
Alberta,
Aleutian Is.,
Altay,
Amur,
Austria,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
California,
Central European Rus,
China North-Central,
Chita,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greenland,
Iceland,
Inner Mongolia,
Ireland,
Irkutsk,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Michigan,
Mongolia,
Netherlands,
New Brunswick,
New Hampshire,
New York,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Oregon,
Poland,
Primorye,
Prince Edward I.,
Québec,
Romania,
Sakhalin,
Saskatchewan,
Spain,
Svalbard,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Tuva,
Ukraine,
Vermont,
Washington,
West Siberia,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Minnesota