Doubtfully present in:
Romania
Native to:
Alaska,
Alberta,
Altay,
Austria,
Belarus,
British Columbia,
Buryatiya,
Central European Russia,
Chita,
Connecticut,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Irkutsk,
Italy,
Japan,
Kamchatka,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Maine,
Manchuria,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
Montana,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North European Russia,
Northwest European Russia,
Northwest Territories,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Poland,
Primorye,
Québec,
Sakhalin,
Saskatchewan,
Spain,
Sweden,
Switzerland,
Tuva,
Vermont,
West Siberia,
Wisconsin,
Yakutskiya,
Yugoslavia,
Yukon
Extinct in:
Great Britain,
Hungary