Native to:
Afghanistan,
Alabama,
Albania,
Algeria,
Amsterdam-St.Paul Is,
Angola,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arkansas,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bolivia,
Borneo,
Botswana,
Brazil South,
British Columbia,
Bulgaria,
Burundi,
California,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Central European Rus,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Comoros,
Corse,
Costa Rica,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Ecuador,
Egypt,
Eritrea,
Ethiopia,
Falkland Is.,
Florida,
France,
Free State,
Føroyar,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Gulf of Guinea Is.,
Hungary,
Iceland,
Illinois,
India,
Inner Mongolia,
Iran,
Ireland,
Italy,
Japan,
Jawa,
Juan Fernández Is.,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Kermadec Is.,
Kirgizstan,
Kriti,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Louisiana,
Macquarie Is.,
Madagascar,
Madeira,
Malawi,
Mali,
Mexico Northwest,
Mississippi,
Missouri,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nepal,
Netherlands,
New Guinea,
New South Wales,
New Zealand North,
New Zealand South,
Nigeria,
Norfolk Is.,
North Carolina,
North Caucasus,
Northern Provinces,
Northern Territory,
Northwest European R,
Norway,
Oklahoma,
Oregon,
Pakistan,
Palestine,
Panamá,
Peru,
Philippines,
Poland,
Portugal,
Qinghai,
Queensland,
Romania,
Rwanda,
Réunion,
Sardegna,
Saudi Arabia,
Sicilia,
South Australia,
South Carolina,
South European Russi,
Spain,
Sri Lanka,
St.Helena,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Thailand,
Tibet,
Transcaucasus,
Tristan da Cunha,
Tunisia,
Turkey,
Turkey-in-Europe,
Uganda,
Ukraine,
Uruguay,
Uzbekistan,
Venezuela,
Victoria,
Vietnam,
Washington,
West Himalaya,
Western Australia,
Xinjiang,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Fiji,
Mauritius,
New Jersey,
Pennsylvania,
Virginia,
Windward Is.