Native to:
Argentina Northeast,
Argentina Northwest,
Argentina South,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Paraguay,
Peru,
Uruguay
Introduced into:
Alabama,
Albania,
Arizona,
Arkansas,
Assam,
Azores,
Bangladesh,
Benin,
Bulgaria,
Burkina,
California,
Cameroon,
Caroline Is.,
Cayman Is.,
Central African Republic,
Chad,
Colorado,
Connecticut,
Cuba,
Czechoslovakia,
Delaware,
District of Columbia,
Dominican Republic,
East Aegean Is.,
Ecuador,
Florida,
Gambia,
Georgia,
Ghana,
Great Britain,
Guinea,
Honduras,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Jawa,
Kansas,
Kentucky,
Korea,
Leeward Is.,
Louisiana,
Marianas,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Nebraska,
Nevada,
New Caledonia,
New Hampshire,
New Jersey,
New Mexico,
New York,
Nigeria,
North Carolina,
North Dakota,
Northern Provinces,
Ohio,
Oklahoma,
Ontario,
Pakistan,
Pennsylvania,
Puerto Rico,
Rhode I.,
Romania,
Saudi Arabia,
Sicilia,
South Carolina,
South China Sea,
South Dakota,
South European Russia,
Sri Lanka,
Tadzhikistan,
Tanzania,
Tennessee,
Texas,
Togo,
Transcaucasus,
Uzbekistan,
Vanuatu,
Vermont,
Vietnam,
Virginia,
West Virginia,
Windward Is.,
Wisconsin,
Zaïre