Native to:
Alabama,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Bolivia,
Brazil Northeast,
Brazil South,
California,
Chile Central,
Chile North,
Colombia,
Colorado,
Cuba,
Dominican Republic,
Ecuador,
El Salvador,
Florida,
Galápagos,
Georgia,
Guatemala,
Haiti,
Honduras,
Illinois,
Indiana,
Kansas,
Kentucky,
Leeward Is.,
Louisiana,
Maine,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mississippi,
Missouri,
Nebraska,
Netherlands Antilles,
Nevada,
New Mexico,
New York,
Nicaragua,
North Carolina,
North Dakota,
Ohio,
Oklahoma,
Panamá,
Paraguay,
Pennsylvania,
Peru,
South Carolina,
Tennessee,
Texas,
Utah,
Venezuela,
Windward Is.
Introduced into:
Afghanistan,
Algeria,
Amur,
Andaman Is.,
Angola,
Ascension,
Bangladesh,
Botswana,
Burkina,
Cameroon,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Chad,
China North-Central,
China South-Central,
China Southeast,
Czechoslovakia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Free State,
Gilbert Is.,
Gulf States,
Hawaii,
India,
Inner Mongolia,
Iran,
Iraq,
Japan,
Jawa,
Kazakhstan,
Kenya,
Khabarovsk,
Korea,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Madagascar,
Madeira,
Malawi,
Mali,
Manchuria,
Marianas,
Marquesas,
Mauritania,
Mongolia,
Morocco,
Mozambique,
Mozambique Channel I,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
Niger,
Nigeria,
North Caucasus,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Palestine,
Primorye,
Qinghai,
Queensland,
Rwanda,
Saudi Arabia,
Seychelles,
Society Is.,
Socotra,
Somalia,
South Australia,
St.Helena,
Sudan,
Swaziland,
Tanzania,
Tibet,
Togo,
Transcaucasus,
Uganda,
Uzbekistan,
Victoria,
Vietnam,
Western Australia,
Xinjiang,
Yemen,
Zambia,
Zimbabwe