Native to:
Albania,
Algeria,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iran,
Ireland,
Italy,
Kazakhstan,
Kriti,
Krym,
Madeira,
Morocco,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
West Siberia,
Yugoslavia
Introduced into:
Alabama,
Argentina Northeast,
Arkansas,
British Columbia,
California,
Colorado,
Delaware,
District of Columbia,
Florida,
Georgia,
Illinois,
India,
Iowa,
Japan,
Kansas,
Kentucky,
Korea,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Minnesota,
Missouri,
New Brunswick,
New Hampshire,
New Mexico,
New York,
New Zealand North,
Newfoundland,
North Carolina,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
South Carolina,
Tennessee,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin