Native to:
Assam,
Bangladesh,
Borneo,
China South-Central,
China Southeast,
East Himalaya,
India,
Laos,
Malaya,
Myanmar,
Nepal,
Nicobar Is.,
Sumatera,
Taiwan,
Thailand,
Tibet,
Vietnam,
West Himalaya
Introduced into:
Alabama,
Algeria,
Andaman Is.,
Azores,
Baleares,
Benin,
Bermuda,
Bismarck Archipelago,
Bolivia,
Brazil North,
Brazil Northeast,
Brazil South,
Cambodia,
Cameroon,
Canary Is.,
Caroline Is.,
Cayman Is.,
Central African Repu,
Chad,
Chagos Archipelago,
Christmas I.,
Colombia,
Comoros,
Congo,
Cook Is.,
Costa Rica,
Cuba,
Dominican Republic,
East Aegean Is.,
Easter Is.,
Ecuador,
Florida,
Galápagos,
Gambia,
Gilbert Is.,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Guyana,
Haiti,
Hawaii,
Honduras,
Italy,
Ivory Coast,
Japan,
Jawa,
Kermadec Is.,
Korea,
Laccadive Is.,
Leeward Is.,
Lesser Sunda Is.,
Line Is.,
Louisiana,
Madagascar,
Madeira,
Malawi,
Maldives,
Marquesas,
Mexico Southwest,
Mississippi,
Morocco,
Nauru,
New Caledonia,
New Guinea,
New South Wales,
Nicaragua,
Niue,
Norfolk Is.,
Paraguay,
Peru,
Portugal,
Puerto Rico,
Queensland,
Samoa,
Santa Cruz Is.,
Sardegna,
Senegal,
Seychelles,
Sicilia,
Society Is.,
Socotra,
Solomon Is.,
Spain,
Sri Lanka,
St.Helena,
Sudan,
Sulawesi,
Texas,
Togo,
Tonga,
Trinidad-Tobago,
Tuamotu,
Tunisia,
Turkey,
Tuvalu,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Wallis-Futuna Is.,
Western Australia,
Windward Is.,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe