Native to:
Argentina Northwest,
Bolivia,
Ecuador,
Peru
Introduced into:
Algeria,
Angola,
Argentina Northeast,
Argentina South,
Arizona,
Bangladesh,
Belgium,
Belize,
Brazil North,
Brazil South,
Brazil Southeast,
Bulgaria,
California,
Cameroon,
Canary Is.,
Cape Verde,
Central African Republic,
China South-Central,
China Southeast,
Colombia,
Connecticut,
Cuba,
Cyprus,
Czechoslovakia,
Delaware,
Denmark,
Djibouti,
East European Russia,
Egypt,
Eritrea,
Ethiopia,
Finland,
Florida,
France,
Germany,
Great Britain,
Greece,
Guatemala,
Guinea-Bissau,
Gulf of Guinea Is.,
Honduras,
Illinois,
India,
Inner Mongolia,
Iran,
Italy,
Japan,
Kansas,
Kazakhstan,
Kenya,
Korea,
Krym,
Lebanon-Syria,
Leeward Is.,
Libya,
Madeira,
Maine,
Malaya,
Maldives,
Massachusetts,
Mauritius,
Mexico Northwest,
Michigan,
Minnesota,
Missouri,
Morocco,
Myanmar,
Nepal,
New South Wales,
New York,
New Zealand North,
New Zealand South,
North Caucasus,
Northern Provinces,
Northern Territory,
Norway,
Oregon,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Primorye,
Puerto Rico,
Queensland,
Romania,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South Australia,
South European Russia,
Sri Lanka,
Sudan,
Sumatera,
Sweden,
Tadzhikistan,
Tennessee,
Thailand,
Transcaucasus,
Trinidad-Tobago,
Turkey-in-Europe,
Uganda,
Uruguay,
Uzbekistan,
Vermont,
Victoria,
Vietnam,
Virginia,
West Himalaya,
Western Australia,
Windward Is.,
Wisconsin,
Yemen,
Zaïre