Native to:
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Texas
Introduced into:
Afghanistan,
Alabama,
Algeria,
Angola,
Argentina Northeast,
Argentina Northwest,
Arkansas,
Aruba,
Assam,
Bahamas,
Baleares,
Bangladesh,
Benin,
Bolivia,
Botswana,
Brazil South,
Brazil Southeast,
Bulgaria,
Burkina,
California,
Canary Is.,
Cape Provinces,
Cape Verde,
Central European Russia,
Chad,
Chile North,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Connecticut,
Costa Rica,
Cuba,
Cyprus,
Czechoslovakia,
District of Columbia,
Djibouti,
Dominican Republic,
East Aegean Is.,
Egypt,
Eritrea,
Ethiopia,
Florida,
France,
Galápagos,
Gambia,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf States,
Haiti,
Honduras,
Illinois,
India,
Indiana,
Iran,
Italy,
Ivory Coast,
Jamaica,
Kansas,
Kentucky,
Kenya,
Kirgizstan,
Korea,
Kriti,
Kuwait,
KwaZulu-Natal,
Lebanon-Syria,
Leeward Is.,
Libya,
Madagascar,
Madeira,
Malawi,
Mali,
Maryland,
Mauritania,
Mauritius,
Michigan,
Minnesota,
Mississippi,
Missouri,
Morocco,
Mozambique,
Namibia,
Netherlands Antilles,
New Caledonia,
New Jersey,
New Mexico,
New South Wales,
New York,
Nicaragua,
Niger,
Nigeria,
North Carolina,
Northern Provinces,
Northern Territory,
Ohio,
Oklahoma,
Oman,
Ontario,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Peru,
Portugal,
Puerto Rico,
Queensland,
Québec,
Romania,
Réunion,
Sardegna,
Saskatchewan,
Saudi Arabia,
Senegal,
Sicilia,
Somalia,
South Australia,
South Carolina,
Southwest Caribbean,
Spain,
Sudan,
Tanzania,
Tennessee,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
Uruguay,
Uzbekistan,
Venezuela,
Victoria,
Vietnam,
West Himalaya,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Xinjiang,
Yemen,
Yugoslavia,
Zaïre,
Zimbabwe