Native to:
Angola,
Assam,
Bangladesh,
Benin,
Borneo,
Burundi,
Cambodia,
Cameroon,
Caroline Is.,
Central African Repu,
China North-Central,
China South-Central,
China Southeast,
East Himalaya,
Ethiopia,
Gabon,
Ghana,
Guinea,
Gulf of Guinea Is.,
Hainan,
India,
Ivory Coast,
Japan,
Jawa,
Kenya,
Lesser Sunda Is.,
Liberia,
Malawi,
Malaya,
Mali,
Myanmar,
Nepal,
New Guinea,
New South Wales,
Nigeria,
Philippines,
Queensland,
Rwanda,
Seychelles,
Sierra Leone,
Somalia,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Taiwan,
Tanzania,
Thailand,
Tibet,
Uganda,
Vietnam,
West Himalaya,
Zambia,
Zaïre
Introduced into:
Colombia,
Costa Rica,
El Salvador,
Florida,
Guatemala,
Honduras,
Leeward Is.,
Mauritius,
Nansei-shoto,
Réunion,
Trinidad-Tobago