Native to:
Alabama,
Arizona,
Bahamas,
Belize,
Bolivia,
Brazil North,
Brazil Northeast,
Cayman Is.,
Colombia,
Costa Rica,
Cuba,
Dominican Republic,
Ecuador,
El Salvador,
Florida,
Guatemala,
Guyana,
Haiti,
Honduras,
Jamaica,
Leeward Is.,
Louisiana,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Netherlands Antilles,
Nicaragua,
Panamá,
Peru,
Puerto Rico,
Southwest Caribbean,
Suriname,
Texas,
Trinidad-Tobago,
Turks-Caicos Is.,
Venezuela,
Windward Is.
Introduced into:
Aldabra,
Algeria,
Andaman Is.,
Angola,
Assam,
Austria,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Botswana,
Bulgaria,
Burundi,
California,
Cambodia,
Cameroon,
Canary Is.,
Cape Verde,
Caroline Is.,
Central African Republic,
Chad,
Comoros,
Congo,
Connecticut,
Cook Is.,
Czechoslovakia,
Djibouti,
East Himalaya,
Equatorial Guinea,
Eritrea,
Ethiopia,
Fiji,
Gabon,
Galápagos,
Gambia,
Germany,
Ghana,
Gilbert Is.,
Great Britain,
Greece,
Guinea-Bissau,
Gulf of Guinea Is.,
India,
Inner Mongolia,
Ireland,
Ivory Coast,
Jawa,
Kazakhstan,
Kazan-retto,
Kenya,
Korea,
Laos,
Line Is.,
Madagascar,
Madeira,
Maldives,
Mali,
Marianas,
Marquesas,
Marshall Is.,
Maryland,
Mauritius,
Missouri,
Morocco,
Myanmar,
Nepal,
New Guinea,
New Mexico,
New South Wales,
New York,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Philippines,
Queensland,
Rodrigues,
Réunion,
Senegal,
Sierra Leone,
Society Is.,
Solomon Is.,
Somalia,
South European Russia,
Sri Lanka,
Sulawesi,
Tadzhikistan,
Tanzania,
Togo,
Tuamotu,
Tunisia,
Turkey,
Turkmenistan,
Uganda,
Uzbekistan,
Vanuatu,
Vietnam,
Wake I.,
West Himalaya,
Zambia,
Zaïre,
Zimbabwe