Native to:
Albania,
Algeria,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Canary Is.,
Central European Rus,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Finland,
France,
Germany,
Greece,
Hungary,
Iran,
Iraq,
Italy,
Kazakhstan,
Kirgizstan,
Kriti,
Krym,
Lebanon-Syria,
Libya,
Madeira,
Morocco,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Selvagens,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arkansas,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
California,
Cape Provinces,
Chile Central,
Chile North,
Chile South,
China Southeast,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Delaware,
Ecuador,
Ethiopia,
Falkland Is.,
Florida,
Georgia,
Great Britain,
Gulf States,
Haiti,
Hawaii,
Iceland,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Jamaica,
Japan,
Kansas,
Kentucky,
Kenya,
Korea,
Krasnoyarsk,
Kuril Is.,
KwaZulu-Natal,
Leeward Is.,
Louisiana,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mauritius,
Mexico Northwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nansei-shoto,
New Brunswick,
New Caledonia,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
Newfoundland,
Norfolk Is.,
North Carolina,
Northern Provinces,
Northwest Territorie,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Peru,
Primorye,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Sakhalin,
South Australia,
South Carolina,
South Dakota,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tibet,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Western Australia,
Wisconsin,
Yakutskiya,
Yemen,
Yukon