Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Assam,
Austria,
Baleares,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Burundi,
Cameroon,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Ethiopia,
France,
Germany,
Great Britain,
Greece,
Hungary,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Italy,
Japan,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Krym,
Laos,
Lebanon-Syria,
Manchuria,
Morocco,
Myanmar,
Nepal,
Netherlands,
North Caucasus,
Pakistan,
Poland,
Portugal,
Romania,
Rwanda,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sri Lanka,
Sudan,
Switzerland,
Tadzhikistan,
Tanzania,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
Vietnam,
West Himalaya,
West Siberia,
Xinjiang,
Yugoslavia,
Zaïre
Extinct in:
Palestine
Introduced into:
Alabama,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bolivia,
British Columbia,
California,
Canary Is.,
Chile Central,
Chile South,
Colombia,
Colorado,
Connecticut,
Delaware,
District of Columbia,
Ecuador,
Idaho,
Illinois,
Indiana,
Iowa,
Juan Fernández Is.,
Kansas,
Kentucky,
Madeira,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
North Carolina,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Québec,
Rhode I.,
South Dakota,
Sweden,
Tasmania,
Tennessee,
Texas,
Uruguay,
Utah,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming