Native to:
Afghanistan,
Alabama,
Andaman Is.,
Arkansas,
Assam,
Bangladesh,
Belize,
Benin,
Bolivia,
Borneo,
Brazil North,
Brazil West-Central,
Burkina,
Caroline Is.,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Costa Rica,
Cuba,
Dominican Republic,
East Himalaya,
Ecuador,
El Salvador,
Equatorial Guinea,
Florida,
French Guiana,
Gabon,
Gambia,
Georgia,
Ghana,
Guatemala,
Guinea,
Guinea-Bissau,
Guyana,
Hainan,
Hawaii,
Honduras,
India,
Iran,
Iraq,
Ivory Coast,
Jamaica,
Japan,
Jawa,
Kentucky,
Kenya,
Korea,
Lesser Sunda Is.,
Liberia,
Louisiana,
Madagascar,
Malaya,
Maluku,
Mauritania,
Mauritius,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mississippi,
Missouri,
Nepal,
New Guinea,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
North Carolina,
Northern Territory,
Pakistan,
Panamá,
Peru,
Philippines,
Puerto Rico,
Qinghai,
Queensland,
Rodrigues,
Réunion,
Senegal,
Seychelles,
Society Is.,
South Carolina,
Sri Lanka,
Sulawesi,
Sumatera,
Suriname,
Taiwan,
Tanzania,
Tennessee,
Texas,
Trinidad-Tobago,
Venezuela,
Vietnam,
Wallis-Futuna Is.,
Western Australia,
Windward Is.,
Zaïre
Introduced into:
Chad,
Fiji,
Samoa