Native to:
Afghanistan,
Albania,
Algeria,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Canary Is.,
Central European Russia,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Finland,
France,
Germany,
Great Britain,
Greece,
Gulf States,
Hungary,
India,
Iran,
Iraq,
Ireland,
Italy,
Kazakhstan,
Kenya,
Kirgizstan,
Kriti,
Krym,
Lebanon-Syria,
Libya,
Madeira,
Malawi,
Morocco,
Nepal,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Oman,
Pakistan,
Palestine,
Poland,
Portugal,
Romania,
Rwanda,
Sardegna,
Saudi Arabia,
Selvagens,
Sicilia,
Sinai,
Somalia,
South European Russia,
Spain,
Sri Lanka,
Sudan,
Sweden,
Switzerland,
Tadzhikistan,
Tanzania,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
West Himalaya,
Xinjiang,
Yemen,
Yugoslavia,
Zaïre
Extinct in:
Cape Verde
Introduced into:
Alabama,
Alberta,
Altay,
Amur,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Ascension,
Bangladesh,
Bermuda,
Bolivia,
Brazil South,
British Columbia,
California,
Cape Provinces,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Desventurados Is.,
District of Columbia,
Dominican Republic,
Easter Is.,
Ecuador,
Falkland Is.,
Florida,
Free State,
Føroyar,
Georgia,
Gulf of Guinea Is.,
Hawaii,
Iceland,
Idaho,
Illinois,
Indiana,
Irkutsk,
Juan Fernández Is.,
Kansas,
Kermadec Is.,
Khabarovsk,
Krasnoyarsk,
KwaZulu-Natal,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mauritius,
Mexico Central,
Mexico Northwest,
Michigan,
Minnesota,
Missouri,
Montana,
New Brunswick,
New Hampshire,
New Jersey,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Peru,
Primorye,
Prince Edward I.,
Queensland,
Québec,
Réunion,
Sakhalin,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
St.Helena,
Taiwan,
Tasmania,
Texas,
Tristan da Cunha,
Uruguay,
Utah,
Vermont,
Victoria,
Virginia,
West Siberia,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Zimbabwe