Native to:
Albania,
Austria,
Belarus,
Belgium,
Bulgaria,
Corse,
Czechoslovakia,
France,
Germany,
Great Britain,
Greece,
Italy,
Netherlands,
Poland,
Romania,
Sicilia,
South European Russi,
Spain,
Switzerland,
Turkey,
Ukraine,
Yugoslavia
Introduced into:
Argentina South,
Baltic States,
British Columbia,
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