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