Native to:
Albania,
Algeria,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Corse,
Czechoslovakia,
East Aegean Is.,
East European Russia,
Egypt,
Eritrea,
Finland,
France,
Germany,
Greece,
Gulf States,
Hungary,
Iceland,
Iran,
Iraq,
Italy,
Kriti,
Lebanon-Syria,
Libya,
Morocco,
Netherlands,
North Caucasus,
Northwest European Russia,
Norway,
Oman,
Pakistan,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
Somalia,
South European Russia,
Spain,
Sudan,
Sweden,
Switzerland,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
West Himalaya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alberta,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Ascension,
Assam,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
California,
Chatham Is.,
Chile Central,
Chile North,
China South-Central,
China Southeast,
Colombia,
Colorado,
Connecticut,
Delaware,
Denmark,
Easter Is.,
Ecuador,
Free State,
Føroyar,
Great Britain,
Gulf of Guinea Is.,
Haiti,
Hawaii,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Jamaica,
Japan,
Juan Fernández Is.,
Kentucky,
Kermadec Is.,
Louisiana,
Madeira,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Southeast,
Mexico Southwest,
Michigan,
Montana,
Nevada,
New Brunswick,
New Caledonia,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North Carolina,
North Dakota,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Paraguay,
Pennsylvania,
Peru,
Pitcairn Is.,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
St.Helena,
Taiwan,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Tuamotu,
Utah,
Venezuela,
Venezuelan Antilles,
Vermont,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Zambia,
Zimbabwe