Native to:
Albania,
Altay,
Amur,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Russia,
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 Russia,
Northwest European Russia,
Norway,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Poland,
Portugal,
Primorye,
Québec,
Romania,
South European Russia,
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