Native to:
Andaman Is.,
Assam,
Bangladesh,
Borneo,
Cape Provinces,
Caroline Is.,
China North-Central,
China South-Central,
China Southeast,
Cook Is.,
East Himalaya,
Fiji,
Hainan,
India,
Inner Mongolia,
Japan,
Jawa,
Korea,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Malawi,
Malaya,
Maluku,
Manchuria,
Marianas,
Marquesas,
Mozambique,
Myanmar,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
Northern Provinces,
Pakistan,
Philippines,
Primorye,
Rwanda,
Samoa,
Society Is.,
Solomon Is.,
Sri Lanka,
Sulawesi,
Sumatera,
Taiwan,
Tanzania,
Thailand,
Tibet,
Uganda,
Vanuatu,
Vietnam,
West Himalaya,
Zaïre,
Zimbabwe
Introduced into:
Alabama,
Arkansas,
Cameroon,
Congo,
Connecticut,
Delaware,
District of Columbia,
Florida,
Georgia,
Illinois,
Indiana,
Iran,
Kentucky,
Louisiana,
Maryland,
Massachusetts,
Mississippi,
Missouri,
New Jersey,
New York,
North Carolina,
Ohio,
Pennsylvania,
Puerto Rico,
South Carolina,
Tennessee,
Texas,
Transcaucasus,
Turkey,
Virginia,
West Virginia