Native to:
Amur,
Assam,
Bangladesh,
Cambodia,
China North-Central,
China South-Central,
China Southeast,
East Himalaya,
Hainan,
India,
Jawa,
Khabarovsk,
Korea,
Lesser Sunda Is.,
Malaya,
Manchuria,
Myanmar,
New Guinea,
New South Wales,
Northern Territory,
Philippines,
Primorye,
Queensland,
Sri Lanka,
Taiwan,
Thailand,
Vietnam,
West Himalaya
Introduced into:
Alabama,
Albania,
Algeria,
Altay,
Argentina Northeast,
Argentina Northwest,
Arkansas,
Austria,
Belgium,
Brazil South,
Bulgaria,
California,
Central European Russia,
Chile Central,
Connecticut,
Czechoslovakia,
Delaware,
District of Columbia,
Finland,
Florida,
Georgia,
Germany,
Great Britain,
Greece,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iraq,
Italy,
Japan,
Kansas,
Kazakhstan,
Kentucky,
Kirgizstan,
Kuril Is.,
Louisiana,
Maine,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Nansei-shoto,
Nebraska,
New Brunswick,
New Hampshire,
New Jersey,
New York,
North Carolina,
North Caucasus,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Qinghai,
Québec,
Rhode I.,
Romania,
South Australia,
South Carolina,
South European Russia,
Sweden,
Tadzhikistan,
Tennessee,
Texas,
Transcaucasus,
Turkmenistan,
Ukraine,
Uruguay,
Uzbekistan,
Vanuatu,
Vermont,
Victoria,
Virginia,
West Virginia,
Western Australia,
Wisconsin,
Xinjiang,
Yugoslavia