Native to:
Afghanistan,
Albania,
Algeria,
Azores,
Baleares,
Canary Is.,
Cape Verde,
Chad,
Corse,
Cyprus,
Djibouti,
East Aegean Is.,
Egypt,
Eritrea,
Ethiopia,
France,
Greece,
Gulf States,
Iran,
Iraq,
Italy,
Kriti,
Kuwait,
Lebanon-Syria,
Libya,
Madeira,
Mauritania,
Morocco,
Niger,
North Caucasus,
Oman,
Pakistan,
Palestine,
Portugal,
Sardegna,
Saudi Arabia,
Selvagens,
Sicilia,
Sinai,
Socotra,
Somalia,
Spain,
Sudan,
Tadzhikistan,
Transcaucasus,
Tunisia,
Turkey,
Turkmenistan,
Yemen,
Yugoslavia
Introduced into:
Alberta,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Bangladesh,
Belgium,
Bermuda,
Bolivia,
Botswana,
Brazil South,
British Columbia,
California,
Cape Provinces,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Costa Rica,
Cuba,
Desventurados Is.,
East Himalaya,
Ecuador,
El Salvador,
Florida,
Free State,
Galápagos,
Georgia,
Great Britain,
Guatemala,
Hawaii,
Honduras,
Idaho,
Illinois,
India,
Iowa,
Ireland,
Japan,
Juan Fernández Is.,
Kansas,
Kenya,
Korea,
KwaZulu-Natal,
Lesotho,
Louisiana,
Manitoba,
Maryland,
Massachusetts,
Mexican Pacific Is.,
Mexico Central,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Missouri,
Montana,
Namibia,
Nebraska,
Nepal,
Nevada,
New Brunswick,
New Caledonia,
New Jersey,
New Mexico,
New York,
New Zealand North,
Norfolk Is.,
North Dakota,
Northern Provinces,
Oklahoma,
Ontario,
Oregon,
Paraguay,
Peru,
Primorye,
Prince Edward I.,
Québec,
Réunion,
Saskatchewan,
South Carolina,
South Dakota,
Sri Lanka,
St.Helena,
Tanzania,
Tasmania,
Texas,
Tristan da Cunha,
Uruguay,
Utah,
Venezuela,
Washington,
West Himalaya,
Wyoming,
Zimbabwe