Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Cape Verde,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hainan,
Hungary,
Iceland,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Lebanon-Syria,
Madeira,
Mongolia,
Morocco,
Nepal,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Pakistan,
Palestine,
Poland,
Portugal,
Qinghai,
Romania,
Sardegna,
Sicilia,
Sinai,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
Vietnam,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yugoslavia
Introduced into:
Alabama,
Alberta,
Amsterdam-St.Paul Is,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
California,
Chatham Is.,
Chile Central,
Colombia,
Connecticut,
Dominican Republic,
Falkland Is.,
Florida,
Georgia,
Haiti,
Hawaii,
Illinois,
Indiana,
Iowa,
Jamaica,
Juan Fernández Is.,
Kamchatka,
Kentucky,
Khabarovsk,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Minnesota,
Missouri,
New Brunswick,
New Hampshire,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North Carolina,
Nova Scotia,
Ontario,
Oregon,
Pennsylvania,
Peru,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Carolina,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin