Native to:
Albania,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greece,
Hungary,
Iran,
Ireland,
Italy,
Kazakhstan,
Krym,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Poland,
Portugal,
Romania,
South European Russi,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Ukraine,
Yugoslavia
Introduced into:
British Columbia,
Connecticut,
Delaware,
Georgia,
Kentucky,
Labrador,
Maine,
Maryland,
Massachusetts,
Michigan,
Minnesota,
New Brunswick,
New Hampshire,
New Jersey,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Québec,
Rhode I.,
Tennessee,
Vermont,
Victoria,
Virginia,
Washington,
West Virginia,
Wisconsin