Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Angola,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Benin,
Borneo,
Bulgaria,
Burundi,
Buryatiya,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Central African Repu,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Comoros,
Congo,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Ethiopia,
France,
Free State,
Germany,
Ghana,
Great Britain,
Greece,
Guinea,
Gulf of Guinea Is.,
Hainan,
Hungary,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Ivory Coast,
Japan,
Jawa,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Madagascar,
Madeira,
Malawi,
Malaya,
Manchuria,
Mauritius,
Mongolia,
Morocco,
Mozambique,
Myanmar,
Nansei-shoto,
Nepal,
Netherlands,
New Guinea,
New South Wales,
Nigeria,
North Caucasus,
North European Russi,
Northern Provinces,
Northern Territory,
Northwest European R,
Pakistan,
Palestine,
Philippines,
Poland,
Portugal,
Qinghai,
Queensland,
Romania,
Rwanda,
Réunion,
Sardegna,
Saudi Arabia,
Sicilia,
Somalia,
South Australia,
South European Russi,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Tasmania,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
Victoria,
Vietnam,
West Himalaya,
West Siberia,
Western Australia,
Xinjiang,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alabama,
Alberta,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Ascension,
Bolivia,
Brazil South,
British Columbia,
California,
Chile Central,
Chile South,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Delaware,
District of Columbia,
Dominican Republic,
Ecuador,
El Salvador,
Fiji,
Finland,
Florida,
Georgia,
Guatemala,
Haiti,
Hawaii,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Jamaica,
Juan Fernández Is.,
Kansas,
Kentucky,
Kermadec Is.,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Northeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Norfolk Is.,
North Carolina,
North Dakota,
Norway,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Panamá,
Pennsylvania,
Peru,
Primorye,
Puerto Rico,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
South Dakota,
Tennessee,
Texas,
Tristan da Cunha,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming