Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Assam,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Kazakhstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuwait,
Lebanon-Syria,
Libya,
Manchuria,
Morocco,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Oman,
Pakistan,
Palestine,
Poland,
Portugal,
Qinghai,
Romania,
Réunion,
Sardegna,
Saudi Arabia,
Sicilia,
South European Russia,
Spain,
Sri Lanka,
Sudan,
Sweden,
Switzerland,
Tadzhikistan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Yakutskiya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Aleutian Is.,
Amsterdam-St.Paul Is.,
Amur,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Azores,
Bermuda,
Bolivia,
Botswana,
Brazil Northeast,
Brazil South,
Brazil Southeast,
British Columbia,
California,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Crozet Is.,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
Ecuador,
Falkland Is.,
Florida,
Free State,
Galápagos,
Georgia,
Guatemala,
Guinea,
Gulf of Guinea Is.,
Haiti,
Hawaii,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Jamaica,
Jawa,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kentucky,
Kenya,
Kerguelen,
Khabarovsk,
Kirgizstan,
Kuril Is.,
KwaZulu-Natal,
Labrador,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Louisiana,
Macquarie Is.,
Madeira,
Magadan,
Maine,
Malaya,
Manitoba,
Marion-Prince Edward Is.,
Maryland,
Massachusetts,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nicaragua,
Norfolk Is.,
North Carolina,
North Dakota,
Northern Provinces,
Northwest Territories,
Nova Scotia,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Peru,
Philippines,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Rwanda,
Sakhalin,
Saskatchewan,
South Carolina,
South Dakota,
South Georgia,
St.Helena,
Svalbard,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Uruguay,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Windward Is.,
Wisconsin,
Wyoming,
Yukon,
Zimbabwe