Native to:
Argentina Northeast,
Argentina Northwest,
Argentina South,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Chile Central,
Chile North,
Chile South,
Falkland Is.,
Paraguay,
Peru,
Uruguay
Introduced into:
Afghanistan,
Alabama,
Albania,
Algeria,
Amsterdam-St.Paul Is.,
Arizona,
Arkansas,
Ascension,
Assam,
Austria,
Azores,
Bahamas,
Baleares,
Bangladesh,
Belgium,
Bermuda,
British Columbia,
California,
Canary Is.,
Cape Provinces,
Cape Verde,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Connecticut,
Cook Is.,
Corse,
Cuba,
Czechia-Slovakia,
Denmark,
Dominican Republic,
East Aegean Is.,
Easter Is.,
Ecuador,
Egypt,
Ethiopia,
Finland,
Florida,
France,
Free State,
French Guiana,
Galápagos,
Georgia,
Germany,
Great Britain,
Greece,
Gulf of Guinea Is.,
Gulf States,
Haiti,
Hawaii,
Honduras,
Hungary,
Illinois,
India,
Ireland,
Italy,
Jamaica,
Japan,
Kentucky,
Kenya,
Korea,
Kriti,
Kuwait,
KwaZulu-Natal,
Leeward Is.,
Lesotho,
Louisiana,
Madeira,
Maine,
Maryland,
Massachusetts,
Mauritius,
Mexico Central,
Mexico Northwest,
Mississippi,
Missouri,
Morocco,
Nansei-shoto,
Netherlands,
New Brunswick,
New Caledonia,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
Newfoundland,
Niue,
Norfolk Is.,
North Carolina,
North Caucasus,
Northern Provinces,
Northwest European Russia,
Norway,
Nova Scotia,
Ogasawara-shoto,
Ohio,
Oman,
Oregon,
Pakistan,
Palestine,
Pennsylvania,
Pitcairn Is.,
Poland,
Portugal,
Puerto Rico,
Queensland,
Québec,
Rodrigues,
Romania,
Réunion,
Sardegna,
Saudi Arabia,
Selvagens,
Sicilia,
South Australia,
South Carolina,
Spain,
Sri Lanka,
St.Helena,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tonga,
Transcaucasus,
Tristan da Cunha,
Tunisia,
Vanuatu,
Venezuela,
Victoria,
Virginia,
West Himalaya,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Xinjiang,
Zimbabwe