Native to:
Albania,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Canary Is.,
Central European Russia,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East European Russia,
France,
Germany,
Great Britain,
Greece,
Hungary,
Ireland,
Italy,
Krym,
Madeira,
Morocco,
Netherlands,
North Caucasus,
Northwest European Russia,
Norway,
Poland,
Portugal,
Romania,
Sicilia,
South European Russia,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Tunisia,
Turkey,
Ukraine,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Amsterdam-St.Paul Is.,
Antipodean Is.,
Argentina Northeast,
Argentina South,
Arizona,
Arkansas,
Bolivia,
Brazil South,
British Columbia,
California,
Cape Provinces,
Chatham Is.,
Chile Central,
China North-Central,
China Southeast,
Colombia,
Connecticut,
Costa Rica,
Delaware,
District of Columbia,
East Himalaya,
Ecuador,
Falkland Is.,
Finland,
Florida,
Georgia,
Haiti,
Hawaii,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Jamaica,
Japan,
Jawa,
Kansas,
Kentucky,
Kermadec Is.,
KwaZulu-Natal,
Louisiana,
Maine,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nicaragua,
Norfolk Is.,
North Carolina,
North Dakota,
North European Russia,
Northern Provinces,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Panamá,
Pennsylvania,
Peru,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Réunion,
South Australia,
South Carolina,
Sri Lanka,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Uruguay,
Venezuela,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin,
Wyoming