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