Native to:
Afghanistan,
Altay,
Amur,
Assam,
Baltic States,
Bangladesh,
Belarus,
Borneo,
Burundi,
Cambodia,
China North-Central,
China South-Central,
China Southeast,
East Himalaya,
Hainan,
India,
Iran,
Irkutsk,
Japan,
Jawa,
Kazakhstan,
Kenya,
Khabarovsk,
Korea,
Krasnoyarsk,
Laos,
Lesser Sunda Is.,
Malaya,
Maluku,
Manchuria,
Marianas,
Mongolia,
Myanmar,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
Northern Territory,
Northwest European Russia,
Pakistan,
Philippines,
Poland,
Primorye,
Queensland,
Rwanda,
South Australia,
Sri Lanka,
Sulawesi,
Sumatera,
Taiwan,
Tanzania,
Thailand,
Tibet,
Uganda,
Victoria,
Vietnam,
West Himalaya,
West Siberia,
Western Australia,
Yakutskiya,
Zambia,
Zaïre
Introduced into:
Alabama,
Arizona,
Aruba,
California,
Canary Is.,
Colombia,
Connecticut,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
Fiji,
Florida,
Georgia,
Germany,
Ghana,
Great Britain,
Honduras,
Indiana,
Ireland,
Ivory Coast,
Jamaica,
Kansas,
Kentucky,
Leeward Is.,
Louisiana,
Madagascar,
Maine,
Maryland,
Massachusetts,
Mauritius,
Mexico Northeast,
Mississippi,
Missouri,
Mozambique,
New York,
New Zealand North,
Nicaragua,
North Carolina,
Ohio,
Oregon,
Panamá,
Pennsylvania,
Réunion,
South Carolina,
Tennessee,
Texas,
Trinidad-Tobago,
Venezuela,
Virginia,
Washington,
West Virginia,
Windward Is.,
Wisconsin