Native to:
Afghanistan,
Alabama,
Albania,
Alberta,
Aldabra,
Algeria,
Angola,
Argentina Northeast,
Argentina Northwest,
Arizona,
Arkansas,
Aruba,
Assam,
Bangladesh,
Belize,
Benin,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Bulgaria,
Burkina,
Burundi,
Cabinda,
California,
Cambodia,
Cameroon,
Cape Provinces,
Cape Verde,
Cayman Is.,
Central African Republic,
Chad,
Chile North,
China North-Central,
China South-Central,
China Southeast,
Christmas I.,
Cocos (Keeling) Is.,
Colombia,
Colorado,
Congo,
Connecticut,
Costa Rica,
Cuba,
Cyprus,
Djibouti,
Dominican Republic,
East Aegean Is.,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
Florida,
Free State,
French Guiana,
Gabon,
Gambia,
Georgia,
Ghana,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hainan,
Haiti,
Honduras,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Iran,
Iraq,
Ivory Coast,
Jamaica,
Jawa,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Kirgizstan,
Krym,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Louisiana,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Manitoba,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
Nicaragua,
Niger,
Nigeria,
North Caucasus,
North Dakota,
Northern Provinces,
Northern Territory,
Ohio,
Oklahoma,
Oman,
Ontario,
Oregon,
Pakistan,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Portugal,
Puerto Rico,
Queensland,
Québec,
Rwanda,
Saskatchewan,
Saudi Arabia,
Senegal,
Sierra Leone,
Sinai,
Socotra,
Somalia,
South Australia,
South China Sea,
South Dakota,
South European Russia,
Southwest Caribbean,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Tadzhikistan,
Taiwan,
Tanzania,
Texas,
Thailand,
Togo,
Transcaucasus,
Trinidad-Tobago,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uganda,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Venezuela,
Venezuelan Antilles,
Vermont,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Western Sahara,
Windward Is.,
Wisconsin,
Wyoming,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Andaman Is.,
Bahamas,
Bermuda,
Caroline Is.,
Chagos Archipelago,
Comoros,
Cook Is.,
District of Columbia,
Fiji,
France,
Galápagos,
Great Britain,
Hawaii,
Italy,
Kazan-retto,
Korea,
Maine,
Marianas,
Marquesas,
Mexican Pacific Is.,
Nauru,
New Caledonia,
New Zealand North,
New Zealand South,
Nicobar Is.,
Niue,
North Carolina,
Primorye,
Rhode I.,
Rodrigues,
Romania,
Réunion,
Samoa,
Seychelles,
Society Is.,
Solomon Is.,
South Carolina,
Tennessee,
Tokelau-Manihiki,
Turks-Caicos Is.,
Vanuatu