Native to:
Afghanistan,
Albania,
Altay,
Amur,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greece,
Hungary,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Jawa,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Kuril Is.,
Madeira,
Magadan,
Manchuria,
Mongolia,
Morocco,
Netherlands,
New Guinea,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Pakistan,
Philippines,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
Sicilia,
South European Russia,
Spain,
Sri Lanka,
Sudan,
Sweden,
Switzerland,
Taiwan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Aleutian Is.,
Amsterdam-St.Paul Is.,
Antipodean Is.,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Ascension,
Bermuda,
Bolivia,
British Columbia,
California,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Crozet Is.,
Delaware,
District of Columbia,
Ecuador,
Florida,
Free State,
Føroyar,
Georgia,
Greenland,
Guatemala,
Haiti,
Hawaii,
Honduras,
Iceland,
Idaho,
Illinois,
Indiana,
Iowa,
Juan Fernández Is.,
Kansas,
Kentucky,
Kerguelen,
Kermadec Is.,
KwaZulu-Natal,
Labrador,
Lesotho,
Louisiana,
Maine,
Manitoba,
Marion-Prince Edward Is.,
Maryland,
Massachusetts,
Mexico Northeast,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North Carolina,
North Dakota,
Northwest Territories,
Nova Scotia,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Peru,
Pitcairn Is.,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
South Dakota,
South Georgia,
St.Helena,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Tubuai Is.,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming,
Yukon