Native to:
Andaman Is.,
Assam,
Bangladesh,
Bismarck Archipelago,
Borneo,
Cambodia,
China South-Central,
China Southeast,
East Himalaya,
India,
Jawa,
Laos,
Lesser Sunda Is.,
Maluku,
Myanmar,
Nepal,
New Guinea,
Nicobar Is.,
Philippines,
Queensland,
Sri Lanka,
Sulawesi,
Sumatera,
Taiwan,
Thailand,
Vietnam,
West Himalaya,
Western Australia
Introduced into:
Angola,
Bahamas,
Benin,
Bolivia,
Brazil Southeast,
Bulgaria,
Burkina,
Burundi,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caroline Is.,
Cayman Is.,
Central African Republic,
Chad,
Colombia,
Comoros,
Congo,
Cook Is.,
Cuba,
Dominican Republic,
East Aegean Is.,
Ecuador,
El Salvador,
Eritrea,
Ethiopia,
Fiji,
Gabon,
Gambia,
Germany,
Ghana,
Gilbert Is.,
Great Britain,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Haiti,
Hawaii,
Honduras,
Illinois,
Inner Mongolia,
Ivory Coast,
Jamaica,
Kazakhstan,
Kenya,
Laccadive Is.,
Leeward Is.,
Liberia,
Line Is.,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Marianas,
Marquesas,
Marshall Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mongolia,
Mozambique,
Nauru,
New Caledonia,
New York,
Nicaragua,
Niger,
Nigeria,
Niue,
Oman,
Panamá,
Primorye,
Puerto Rico,
Romania,
Samoa,
Senegal,
Sierra Leone,
Society Is.,
South Australia,
South European Russia,
Sudan,
Tanzania,
Tokelau-Manihiki,
Tonga,
Trinidad-Tobago,
Tuamotu,
Uganda,
Ukraine,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Wallis-Futuna Is.,
Windward Is.,
Xinjiang,
Zambia,
Zaïre,
Zimbabwe