Native to:
Amur,
China North-Central,
China South-Central,
China Southeast,
Hainan,
Inner Mongolia,
Japan,
Khabarovsk,
Korea,
Laos,
Manchuria,
Nansei-shoto,
Primorye,
Qinghai,
Taiwan,
Thailand,
Tibet,
Vietnam,
Xinjiang
Introduced into:
Alabama,
Assam,
Baltic States,
Bangladesh,
Belarus,
Benin,
Cambodia,
Cameroon,
Cayman Is.,
Central European Rus,
Chad,
Colombia,
Congo,
Cuba,
Czechoslovakia,
Dominican Republic,
East European Russia,
East Himalaya,
Ecuador,
Ethiopia,
Galápagos,
Guinea,
Honduras,
Illinois,
India,
Iraq,
Jawa,
Kazakhstan,
Kenya,
Kirgizstan,
Maryland,
Mongolia,
Myanmar,
Nepal,
New Caledonia,
New Guinea,
North Caucasus,
North European Russi,
Pakistan,
Philippines,
Puerto Rico,
Queensland,
South European Russi,
Sri Lanka,
Tadzhikistan,
Tanzania,
Transcaucasus,
Trinidad-Tobago,
Turkmenistan,
Ukraine,
Uzbekistan,
Vermont,
West Himalaya,
Wisconsin