Native to:
Albania,
Austria,
Belarus,
Belgium,
Bulgaria,
Corse,
Czechoslovakia,
France,
Germany,
Great Britain,
Greece,
Italy,
Netherlands,
Poland,
Romania,
Sicilia,
South European Russia,
Spain,
Switzerland,
Turkey,
Ukraine,
Yugoslavia
Introduced into:
Argentina South,
Baltic States,
British Columbia,
Central European Russia,
Chile South,
Connecticut,
Delaware,
Denmark,
District of Columbia,
Finland,
Hungary,
Idaho,
Illinois,
Indiana,
Ireland,
Japan,
Kentucky,
Khabarovsk,
Kuril Is.,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Carolina,
Norway,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
Sakhalin,
Sweden,
Tasmania,
Tennessee,
Vermont,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming