Native to:
Afghanistan,
Altay,
Amur,
Assam,
Bangladesh,
Cambodia,
China North-Central,
China South-Central,
China Southeast,
Chita,
East Himalaya,
Hainan,
India,
Inner Mongolia,
Japan,
Jawa,
Khabarovsk,
Korea,
Laos,
Lesser Sunda Is.,
Manchuria,
Mongolia,
Myanmar,
Nansei-shoto,
Nepal,
New Guinea,
New South Wales,
New Zealand North,
New Zealand South,
Pakistan,
Philippines,
Primorye,
Queensland,
South Australia,
Sri Lanka,
Tadzhikistan,
Taiwan,
Tasmania,
Thailand,
Tibet,
Victoria,
Vietnam,
West Himalaya
Introduced into:
Alabama,
Argentina Northeast,
Argentina Northwest,
Arkansas,
Ascension,
Azores,
Bahamas,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Colombia,
Connecticut,
Costa Rica,
Delaware,
District of Columbia,
El Salvador,
Fiji,
Florida,
Georgia,
Great Britain,
Hawaii,
Illinois,
Jamaica,
Kentucky,
Louisiana,
Maryland,
Massachusetts,
Mauritius,
Michigan,
Mississippi,
Missouri,
New Jersey,
New York,
Nicaragua,
North Carolina,
Ohio,
Oklahoma,
Oregon,
Panamá,
Pennsylvania,
South Carolina,
Tennessee,
Texas,
Uzbekistan,
Virginia,
Washington,
West Virginia,
Wisconsin