Native to:
Assam,
Bangladesh,
India,
Laos,
Lesser Sunda Is.,
Myanmar,
New South Wales,
Northern Territory,
Pakistan,
Queensland,
Sri Lanka,
Taiwan,
Thailand,
Vietnam,
West Himalaya,
Western Australia
Introduced into:
Angola,
Benin,
Burkina,
Cambodia,
Cameroon,
Chad,
China North-Central,
China South-Central,
China Southeast,
Christmas I.,
Comoros,
Congo,
East Himalaya,
Ethiopia,
Gabon,
Ghana,
Great Britain,
Guinea,
Hainan,
Honduras,
Inner Mongolia,
Iraq,
Jawa,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Madagascar,
Malawi,
Malaya,
Mali,
Manchuria,
Marianas,
Mozambique,
Nepal,
New Guinea,
Niger,
Nigeria,
North Caucasus,
Oman,
Peru,
Philippines,
Qinghai,
Senegal,
Sierra Leone,
Somalia,
South European Russia,
Sudan,
Tadzhikistan,
Tanzania,
Tibet,
Togo,
Tonga,
Transcaucasus,
Trinidad-Tobago,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
Xinjiang,
Yemen,
Zambia,
Zaïre,
Zimbabwe