Native to:
Albania,
Altay,
Amur,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Rus,
Chita,
Connecticut,
Czechoslovakia,
Denmark,
East European Russia,
Ethiopia,
Finland,
France,
Germany,
Great Britain,
Greenland,
Hungary,
Illinois,
Indiana,
Inner Mongolia,
Ireland,
Irkutsk,
Italy,
Japan,
Kazakhstan,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
Maine,
Manchuria,
Massachusetts,
Michigan,
Minnesota,
Mongolia,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Poland,
Portugal,
Primorye,
Québec,
Romania,
South European Russi,
Spain,
Sweden,
Switzerland,
Tibet,
Turkey-in-Europe,
Tuva,
Ukraine,
Vermont,
West Siberia,
Wisconsin,
Xinjiang,
Yugoslavia
Introduced into:
British Columbia,
New Zealand North,
New Zealand South