Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Central European Rus,
China South-Central,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Egypt,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Gulf States,
Hungary,
Iceland,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Kirgizstan,
Krasnoyarsk,
Kriti,
Krym,
Lebanon-Syria,
Libya,
Madeira,
Manchuria,
Mongolia,
Morocco,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
Sinai,
South European Russi,
Spain,
Sweden,
Switzerland,
Taiwan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Uzbekistan,
West Siberia,
Yakutskiya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Amur,
Arizona,
Assam,
Bermuda,
Bolivia,
British Columbia,
California,
Cape Provinces,
Chatham Is.,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
Ecuador,
Eritrea,
Ethiopia,
Falkland Is.,
Florida,
Georgia,
Greenland,
Guatemala,
Haiti,
Hawaii,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Jamaica,
Japan,
Jawa,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kentucky,
Khabarovsk,
Korea,
Kuril Is.,
Labrador,
Lesotho,
Louisiana,
Magadan,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Southeast,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
North Dakota,
Northwest Territorie,
Nova Scotia,
Nunavut,
Ohio,
Oklahoma,
Ontario,
Oregon,
Paraguay,
Pennsylvania,
Peru,
Primorye,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
South Georgia,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Yukon,
Zimbabwe