Native to:
Afghanistan,
Alabama,
Aldabra,
Algeria,
Andaman Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Bahamas,
Bangladesh,
Belize,
Benin,
Bermuda,
Bolivia,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burkina,
Burundi,
California,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Central African Repu,
Central American Pac,
Chad,
Chile Central,
Chile North,
China Southeast,
Colombia,
Colorado,
Congo,
Connecticut,
Costa Rica,
Cuba,
Delaware,
Djibouti,
Dominican Republic,
Ecuador,
Egypt,
El Salvador,
Equatorial Guinea,
Eritrea,
Ethiopia,
Florida,
Free State,
French Guiana,
Gabon,
Galápagos,
Gambia,
Georgia,
Ghana,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hainan,
Haiti,
Honduras,
Illinois,
India,
Indiana,
Iowa,
Iran,
Ivory Coast,
Jamaica,
Jawa,
Kansas,
Kentucky,
Kenya,
Kuwait,
KwaZulu-Natal,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Louisiana,
Madagascar,
Madeira,
Maine,
Malawi,
Malaya,
Mali,
Maluku,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Mississippi,
Missouri,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nebraska,
Netherlands Antilles,
Nevada,
New Guinea,
New Jersey,
New Mexico,
New South Wales,
New York,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Ohio,
Oklahoma,
Oman,
Pakistan,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Puerto Rico,
Queensland,
Rodrigues,
Rwanda,
Réunion,
Saudi Arabia,
Senegal,
Seychelles,
Sierra Leone,
Socotra,
Somalia,
South Australia,
South Carolina,
South China Sea,
South Dakota,
Sri Lanka,
Sudan,
Suriname,
Swaziland,
Taiwan,
Tanzania,
Tennessee,
Texas,
Thailand,
Togo,
Trinidad-Tobago,
Uganda,
Utah,
Venezuela,
Victoria,
Vietnam,
Virginia,
West Himalaya,
Western Australia,
Windward Is.,
Wyoming,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Amur,
Ascension,
Belgium,
Caroline Is.,
Cayman Is.,
Chagos Archipelago,
China North-Central,
China South-Central,
Christmas I.,
Cocos (Keeling) Is.,
Comoros,
Cook Is.,
Czechoslovakia,
Desventurados Is.,
East Himalaya,
Easter Is.,
Fiji,
Gilbert Is.,
Hawaii,
Inner Mongolia,
Iraq,
Japan,
Kazakhstan,
Kazan-retto,
Kermadec Is.,
Khabarovsk,
Korea,
Lebanon-Syria,
Line Is.,
Manchuria,
Marianas,
Marquesas,
Marshall Is.,
Mongolia,
Mozambique Channel I,
Nansei-shoto,
Nauru,
Nepal,
New Caledonia,
New Zealand North,
New Zealand South,
Niue,
Norfolk Is.,
North Caucasus,
Ogasawara-shoto,
Oregon,
Palestine,
Phoenix Is.,
Primorye,
Qinghai,
Samoa,
Sardegna,
Society Is.,
Solomon Is.,
Spain,
St.Helena,
Sumatera,
Tasmania,
Tibet,
Tokelau-Manihiki,
Tonga,
Transcaucasus,
Tuamotu,
Tunisia,
Turks-Caicos Is.,
Uruguay,
Uzbekistan,
Vanuatu,
Venezuelan Antilles,
Wake I.,
Wallis-Futuna Is.,
Wisconsin,
Xinjiang