Native to:
Albania,
Altay,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Central European Russia,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
Ireland,
Irkutsk,
Italy,
Krasnoyarsk,
Krym,
Lebanon-Syria,
Madeira,
Morocco,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Poland,
Portugal,
Romania,
Sicilia,
South European Russia,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Ukraine,
West Siberia,
Yakutskiya,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Assam,
Bahamas,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
British Columbia,
California,
Cameroon,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile South,
China North-Central,
China Southeast,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
East Himalaya,
Ecuador,
Falkland Is.,
Florida,
Free State,
Georgia,
Greenland,
Haiti,
Hawaii,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Jamaica,
Japan,
Jawa,
Kamchatka,
Kansas,
Kentucky,
Kerguelen,
Khabarovsk,
Korea,
KwaZulu-Natal,
Labrador,
Leeward Is.,
Lesotho,
Louisiana,
Madagascar,
Magadan,
Maine,
Malaya,
Manitoba,
Maryland,
Massachusetts,
Mexico Northwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Namibia,
Nebraska,
Nepal,
Nevada,
New Brunswick,
New Caledonia,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Niue,
Norfolk Is.,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Northwest Territories,
Nova Scotia,
Nunavut,
Ohio,
Oklahoma,
Ontario,
Oregon,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Pitcairn Is.,
Primorye,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
South Georgia,
Swaziland,
Taiwan,
Tasmania,
Tennessee,
Texas,
Tuamotu,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Wyoming,
Yukon,
Zaïre,
Zimbabwe