Native to:
Afghanistan,
Alabama,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Bahamas,
Belize,
Bolivia,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
California,
Cayman Is.,
Chile Central,
Chile North,
China North-Central,
Colombia,
Colorado,
Costa Rica,
Cuba,
Dominican Republic,
East Himalaya,
Ecuador,
El Salvador,
Florida,
French Guiana,
Galápagos,
Georgia,
Guatemala,
Guyana,
Haiti,
Honduras,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Jamaica,
Kansas,
Kentucky,
Leeward Is.,
Louisiana,
Manitoba,
Maryland,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Jersey,
New Mexico,
New York,
Nicaragua,
North Carolina,
North Dakota,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Puerto Rico,
Québec,
South Carolina,
South Dakota,
Southwest Caribbean,
Suriname,
Tennessee,
Texas,
Trinidad-Tobago,
Turks-Caicos Is.,
Uruguay,
Utah,
Venezuela,
Venezuelan Antilles,
Vermont,
Virginia,
Washington,
West Virginia,
Windward Is.,
Wisconsin,
Wyoming
Introduced into:
Albania,
Algeria,
Andaman Is.,
Angola,
Ascension,
Austria,
Azores,
Baleares,
Bangladesh,
Belgium,
Benin,
Bermuda,
Bismarck Archipelago,
Borneo,
Botswana,
Bulgaria,
Burkina,
Burundi,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caroline Is.,
Central African Republic,
Central European Russia,
Chad,
China South-Central,
China Southeast,
Christmas I.,
Cocos (Keeling) Is.,
Comoros,
Congo,
Cook Is.,
Czechoslovakia,
Djibouti,
Easter Is.,
Egypt,
Equatorial Guinea,
Eritrea,
Ethiopia,
Fiji,
France,
Free State,
Gabon,
Gambia,
Ghana,
Gilbert Is.,
Great Britain,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Hainan,
Hawaii,
Hungary,
Inner Mongolia,
Ireland,
Italy,
Ivory Coast,
Japan,
Jawa,
Juan Fernández Is.,
Kazan-retto,
Kenya,
Kirgizstan,
Korea,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Lebanon-Syria,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Line Is.,
Madagascar,
Madeira,
Malawi,
Malaya,
Maldives,
Mali,
Manchuria,
Marianas,
Marquesas,
Marshall Is.,
Mauritania,
Mauritius,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
New Caledonia,
New Guinea,
New South Wales,
New Zealand North,
Nicobar Is.,
Niger,
Nigeria,
Niue,
Norfolk Is.,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Oman,
Palestine,
Philippines,
Phoenix Is.,
Portugal,
Primorye,
Queensland,
Romania,
Rwanda,
Réunion,
Samoa,
Saudi Arabia,
Senegal,
Seychelles,
Sicilia,
Sierra Leone,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
South Australia,
South China Sea,
Spain,
Sri Lanka,
St.Helena,
Sudan,
Swaziland,
Tadzhikistan,
Taiwan,
Tanzania,
Tasmania,
Thailand,
Togo,
Tokelau-Manihiki,
Tonga,
Tristan da Cunha,
Tuamotu,
Tubuai Is.,
Turkey,
Tuvalu,
Uganda,
Ukraine,
Uzbekistan,
Vanuatu,
Victoria,
Vietnam,
Wallis-Futuna Is.,
West Himalaya,
West Siberia,
Western Australia,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe