Native to:
Afghanistan,
Albania,
Algeria,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Canary Is.,
Cape Verde,
Central European Rus,
China South-Central,
China Southeast,
Corse,
Cyprus,
Czechoslovakia,
East Aegean Is.,
East European Russia,
East Himalaya,
France,
Germany,
Great Britain,
Greece,
Hungary,
India,
Iran,
Iraq,
Ireland,
Italy,
Jawa,
Kazakhstan,
Kriti,
Lebanon-Syria,
Libya,
Madeira,
Malaya,
Manchuria,
Morocco,
Nepal,
Netherlands,
New Guinea,
North Caucasus,
Northwest European R,
Pakistan,
Palestine,
Panamá,
Philippines,
Poland,
Portugal,
Romania,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South European Russi,
Spain,
Switzerland,
Tadzhikistan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Uzbekistan,
Vietnam,
West Himalaya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Amsterdam-St.Paul Is,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
California,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile South,
Colombia,
Connecticut,
Costa Rica,
Crozet Is.,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
Easter Is.,
Ecuador,
Falkland Is.,
Finland,
Florida,
Free State,
Føroyar,
Georgia,
Guatemala,
Haiti,
Honduras,
Iceland,
Idaho,
Illinois,
Indiana,
Jamaica,
Japan,
Juan Fernández Is.,
Kansas,
Kentucky,
Kerguelen,
Kermadec Is.,
Korea,
KwaZulu-Natal,
Louisiana,
Macquarie Is.,
Maryland,
Massachusetts,
Mauritius,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Mississippi,
Missouri,
Montana,
Nansei-shoto,
Nevada,
New Caledonia,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nicaragua,
Norfolk Is.,
North Carolina,
Norway,
Nova Scotia,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Peru,
Québec,
Réunion,
Somalia,
South Carolina,
Sri Lanka,
St.Helena,
Sweden,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Tubuai Is.,
Uruguay,
Venezuela,
Virginia,
Yukon,
Zimbabwe