Native to:
Afghanistan,
Albania,
Aldabra,
Algeria,
Angola,
Ascension,
Azores,
Baleares,
Benin,
Bulgaria,
Burkina,
Burundi,
Cameroon,
Canary Is.,
Cape Verde,
Central African Repu,
Chad,
Chagos Archipelago,
Congo,
Corse,
Egypt,
Eritrea,
Ethiopia,
France,
Gabon,
Gambia,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Iran,
Iraq,
Italy,
Ivory Coast,
Kenya,
Kriti,
Kuwait,
Lebanon-Syria,
Liberia,
Libya,
Madeira,
Mali,
Mauritania,
Morocco,
Niger,
Nigeria,
North Caucasus,
Oman,
Pakistan,
Palestine,
Portugal,
Romania,
Sardegna,
Saudi Arabia,
Senegal,
Seychelles,
Sicilia,
Sierra Leone,
Sinai,
Socotra,
Somalia,
Spain,
St.Helena,
Sudan,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Yemen,
Yugoslavia,
Zaïre
Introduced into:
Alabama,
Alberta,
Altay,
Amur,
Andaman Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Austria,
Bahamas,
Bangladesh,
Belarus,
Belgium,
Belize,
Bermuda,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
California,
Cambodia,
Cape Provinces,
Cayman Is.,
Central American Pac,
Central European Rus,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Christmas I.,
Cocos (Keeling) Is.,
Colombia,
Colorado,
Connecticut,
Cook Is.,
Costa Rica,
Cuba,
Czechoslovakia,
Delaware,
Denmark,
Desventurados Is.,
District of Columbia,
Djibouti,
Dominican Republic,
East Aegean Is.,
East European Russia,
East Himalaya,
Easter Is.,
Ecuador,
El Salvador,
Fiji,
Finland,
Florida,
Free State,
French Guiana,
Galápagos,
Georgia,
Germany,
Great Britain,
Guatemala,
Guyana,
Hainan,
Haiti,
Honduras,
Howland-Baker Is.,
Hungary,
Idaho,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Japan,
Jawa,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kazakhstan,
Kazan-retto,
Kentucky,
Kirgizstan,
Korea,
Krym,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Line Is.,
Louisiana,
Maine,
Malawi,
Malaya,
Maldives,
Maluku,
Manchuria,
Manitoba,
Marquesas,
Maryland,
Massachusetts,
Mauritius,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Mozambique,
Mozambique Channel I,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
Nebraska,
Nepal,
Netherlands,
Netherlands Antilles,
Nevada,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
Nicaragua,
Nicobar Is.,
Niue,
Norfolk Is.,
North Carolina,
North Dakota,
Northern Provinces,
Nova Scotia,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Panamá,
Paraguay,
Pennsylvania,
Philippines,
Phoenix Is.,
Pitcairn Is.,
Poland,
Primorye,
Prince Edward I.,
Puerto Rico,
Qinghai,
Queensland,
Québec,
Rhode I.,
Rodrigues,
Rwanda,
Réunion,
Samoa,
Saskatchewan,
Society Is.,
Solomon Is.,
South Carolina,
South China Sea,
South Dakota,
South European Russi,
Southwest Caribbean,
Sri Lanka,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tasmania,
Tennessee,
Texas,
Tibet,
Tokelau-Manihiki,
Tonga,
Trinidad-Tobago,
Tuamotu,
Tubuai Is.,
Turkmenistan,
Turks-Caicos Is.,
Tuvalu,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Vermont,
Vietnam,
Virginia,
Wallis-Futuna Is.,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Wyoming,
Xinjiang,
Zambia,
Zimbabwe