Native to:
Afghanistan,
Albania,
Algeria,
Assam,
Austria,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Burundi,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
France,
Germany,
Greece,
Hainan,
Hungary,
India,
Iran,
Iraq,
Italy,
Japan,
Jawa,
Kenya,
Kirgizstan,
Korea,
Kriti,
Krym,
KwaZulu-Natal,
Libya,
Mauritania,
Morocco,
Myanmar,
Nansei-shoto,
Nepal,
Netherlands,
New South Wales,
North Caucasus,
North European Russia,
Northern Provinces,
Northern Territory,
Northwest European Russia,
Pakistan,
Palestine,
Philippines,
Poland,
Portugal,
Queensland,
Romania,
Rwanda,
Sardegna,
Sicilia,
Somalia,
South Australia,
South European Russia,
Spain,
Sudan,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Tasmania,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
Victoria,
Vietnam,
West Himalaya,
Western Australia,
Western Sahara,
Xinjiang,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alabama,
Amsterdam-St.Paul Is.,
Arizona,
Azores,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
Brazil West-Central,
California,
Canary Is.,
Cape Verde,
Chile Central,
Colorado,
Connecticut,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
Florida,
Free State,
Georgia,
Great Britain,
Guatemala,
Haiti,
Indiana,
Ireland,
Kentucky,
Louisiana,
Madeira,
Maryland,
Massachusetts,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Michigan,
Mississippi,
New Caledonia,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Niger,
Niue,
North Carolina,
Oman,
Oregon,
Pennsylvania,
Rhode I.,
South Carolina,
Tennessee,
Texas,
Tristan da Cunha,
Virginia,
Washington,
West Virginia,
Wisconsin