Native to:
Afghanistan,
Albania,
Algeria,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Cape Verde,
Central European Russia,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Egypt,
Finland,
France,
Germany,
Greece,
Hungary,
Iran,
Iraq,
Italy,
Kazakhstan,
Kirgizstan,
Kriti,
Krym,
Lebanon-Syria,
Morocco,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Pakistan,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
Sinai,
South European Russia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Uzbekistan,
West Himalaya,
Yugoslavia
Introduced into:
Alabama,
Alberta,
Altay,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bangladesh,
Bolivia,
Borneo,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Buryatiya,
California,
Cambodia,
Cape Provinces,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colorado,
Connecticut,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
El Salvador,
Ethiopia,
Florida,
Free State,
French Guiana,
Georgia,
Great Britain,
Guatemala,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hainan,
Honduras,
Idaho,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Jawa,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kentucky,
Khabarovsk,
Krasnoyarsk,
Kuril Is.,
Kuwait,
KwaZulu-Natal,
Labrador,
Laos,
Lesotho,
Lesser Sunda Is.,
Libya,
Louisiana,
Madagascar,
Maine,
Malaya,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Myanmar,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Nova Scotia,
Ohio,
Oklahoma,
Oman,
Ontario,
Oregon,
Paraguay,
Pennsylvania,
Philippines,
Primorye,
Prince Edward I.,
Puerto Rico,
Qinghai,
Queensland,
Québec,
Rhode I.,
Réunion,
Sakhalin,
Saskatchewan,
Saudi Arabia,
South Australia,
South Carolina,
South Dakota,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Taiwan,
Tasmania,
Tennessee,
Texas,
Thailand,
Tibet,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Siberia,
West Virginia,
Western Australia,
Western Sahara,
Windward Is.,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yemen,
Zaïre,
Zimbabwe