Native to:
Albania,
Algeria,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Cameroon,
Canary Is.,
Cape Verde,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
Ethiopia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Gulf of Guinea Is.,
Hungary,
Iran,
Ireland,
Italy,
Kenya,
Kriti,
Krym,
Lebanon-Syria,
Libya,
Madagascar,
Madeira,
Malawi,
Morocco,
Netherlands,
Nigeria,
North Caucasus,
Norway,
Palestine,
Poland,
Portugal,
Romania,
Rwanda,
Sardegna,
Sicilia,
Spain,
Sudan,
Sweden,
Switzerland,
Tanzania,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Uganda,
Ukraine,
West Himalaya,
Yugoslavia,
Zaïre
Introduced into:
Alabama,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Brazil South,
British Columbia,
California,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile South,
Connecticut,
Costa Rica,
Crozet Is.,
Delaware,
District of Columbia,
Falkland Is.,
Florida,
Free State,
Hawaii,
Japan,
Juan Fernández Is.,
Kerguelen,
Korea,
KwaZulu-Natal,
Lesotho,
Marquesas,
Maryland,
Massachusetts,
Mauritius,
Mexico Northwest,
Mexico Southwest,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Norfolk Is.,
North Carolina,
Nova Scotia,
Oregon,
Pennsylvania,
Queensland,
South Australia,
Tasmania,
Tennessee,
Tristan da Cunha,
Uruguay,
Victoria,
Virginia,
Washington,
Western Australia