Native to:
Argentina Northeast,
Argentina Northwest,
Bahamas,
Belize,
Bolivia,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Cayman Is.,
Colombia,
Costa Rica,
Cuba,
Dominican Republic,
Ecuador,
El Salvador,
Galápagos,
Guatemala,
Haiti,
Honduras,
Jamaica,
Leeward Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Nicaragua,
Panamá,
Paraguay,
Peru,
Puerto Rico,
Southwest Caribbean,
Trinidad-Tobago,
Turks-Caicos Is.,
Venezuela,
Venezuelan Antilles,
Windward Is.
Introduced into:
Afghanistan,
Alabama,
Albania,
Andaman Is.,
Angola,
Arkansas,
Assam,
Bangladesh,
Benin,
Borneo,
Botswana,
Burkina,
Burundi,
California,
Cambodia,
Cameroon,
Cape Verde,
Caroline Is.,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
Christmas I.,
Congo,
Connecticut,
Cyprus,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Fiji,
Finland,
Florida,
France,
French Guiana,
Gabon,
Gambia,
Georgia,
Ghana,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hawaii,
Illinois,
India,
Indiana,
Iowa,
Iran,
Italy,
Ivory Coast,
Japan,
Jawa,
Kansas,
Kazan-retto,
Kentucky,
Kenya,
Korea,
KwaZulu-Natal,
Laos,
Liberia,
Louisiana,
Madeira,
Maine,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Manitoba,
Marianas,
Marshall Is.,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Minnesota,
Mississippi,
Missouri,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
Nebraska,
Nepal,
New Caledonia,
New Guinea,
New Jersey,
New South Wales,
New York,
New Zealand North,
Nicobar Is.,
Niger,
Nigeria,
North Carolina,
Northern Provinces,
Norway,
Ohio,
Oklahoma,
Ontario,
Pakistan,
Palestine,
Pennsylvania,
Philippines,
Primorye,
Queensland,
Rhode I.,
Rwanda,
Réunion,
Samoa,
Saudi Arabia,
Senegal,
Sierra Leone,
Solomon Is.,
South Carolina,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Sweden,
Taiwan,
Tanzania,
Tennessee,
Texas,
Thailand,
Togo,
Transcaucasus,
Tunisia,
Uganda,
Ukraine,
Vanuatu,
Vermont,
Vietnam,
Virginia,
West Himalaya,
West Virginia,
Wisconsin,
Yemen,
Zambia,
Zaïre,
Zimbabwe