Native to:
Argentina Northwest,
Bolivia,
Chile Central,
Chile North,
Peru
Introduced into:
Alabama,
Amur,
Angola,
Ascension,
Assam,
Austria,
Belgium,
Bermuda,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Bulgaria,
Burundi,
Canary Is.,
Cape Provinces,
Cape Verde,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Colorado,
Comoros,
Costa Rica,
Czechoslovakia,
Djibouti,
East Aegean Is.,
East Himalaya,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
France,
Galápagos,
Germany,
Great Britain,
Greece,
Guatemala,
Gulf of Guinea Is.,
Haiti,
Hawaii,
Honduras,
Hungary,
Illinois,
India,
Inner Mongolia,
Iran,
Jawa,
Kazakhstan,
Kentucky,
Kenya,
Kirgizstan,
Korea,
Kriti,
Krym,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Madagascar,
Madeira,
Malawi,
Maryland,
Mauritius,
Mexico Central,
Mexico Northwest,
Mexico Southwest,
Mozambique,
Myanmar,
Namibia,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
New York,
New Zealand North,
Nicaragua,
Norfolk Is.,
Northern Provinces,
Oman,
Palestine,
Poland,
Primorye,
Queensland,
Romania,
Rwanda,
Réunion,
Socotra,
Somalia,
South Australia,
South European Russi,
Spain,
Sri Lanka,
St.Helena,
Swaziland,
Switzerland,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Tibet,
Transcaucasus,
Turkmenistan,
Uzbekistan,
Venezuela,
Vermont,
Victoria,
West Himalaya,
Western Australia,
Wisconsin,
Xinjiang,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe