Native to:
Afghanistan,
Andaman Is.,
Assam,
Bangladesh,
Burkina,
Burundi,
Cambodia,
Chad,
China South-Central,
China Southeast,
Comoros,
Congo,
East Himalaya,
Equatorial Guinea,
Ethiopia,
Gabon,
Gambia,
Guinea,
Hainan,
India,
Iraq,
Ivory Coast,
Jawa,
Kazakhstan,
Kentucky,
Lesser Sunda Is.,
Madagascar,
Malawi,
Maluku,
Mauritania,
Mauritius,
Nepal,
New Guinea,
Nicobar Is.,
Nigeria,
Northern Territory,
Ogasawara-shoto,
Oman,
Pakistan,
Philippines,
Queensland,
Réunion,
Saudi Arabia,
Senegal,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Taiwan,
Tanzania,
Thailand,
Tibet,
Togo,
Uganda,
Uzbekistan,
Vietnam,
West Himalaya,
Western Australia,
Zambia,
Zaïre
Introduced into:
Fiji,
French Guiana,
Guyana,
Hawaii,
Puerto Rico,
Society Is.,
Suriname,
Tennessee,
Venezuela,
Windward Is.