Native to:
Afghanistan,
Alabama,
Albania,
Aldabra,
Algeria,
Andaman Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Arizona,
Arkansas,
Assam,
Bahamas,
Bangladesh,
Belize,
Benin,
Bismarck Archipelago,
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,
Caprivi Strip,
Caroline Is.,
Cayman Is.,
Central African Republic,
Central American Pacific Is.,
Chad,
China North-Central,
China South-Central,
China Southeast,
Christmas I.,
Cocos (Keeling) Is.,
Colombia,
Comoros,
Congo,
Connecticut,
Cook Is.,
Costa Rica,
Cuba,
Cyprus,
Czechoslovakia,
Delaware,
District of Columbia,
Djibouti,
Dominican Republic,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
Fiji,
Florida,
Free State,
French Guiana,
Gabon,
Gambia,
Georgia,
Ghana,
Gilbert Is.,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hainan,
Haiti,
Hawaii,
Honduras,
Hungary,
Illinois,
India,
Indiana,
Iowa,
Iran,
Iraq,
Italy,
Ivory Coast,
Jamaica,
Japan,
Jawa,
Kansas,
Kazan-retto,
Kentucky,
Kenya,
Kermadec Is.,
Korea,
Kriti,
Krym,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Louisiana,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Marianas,
Marquesas,
Marshall Is.,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
Niue,
Norfolk Is.,
North Carolina,
North Caucasus,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Ohio,
Oklahoma,
Oman,
Ontario,
Pakistan,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Pitcairn Is.,
Poland,
Portugal,
Puerto Rico,
Queensland,
Rhode I.,
Rodrigues,
Romania,
Rwanda,
Réunion,
Samoa,
Santa Cruz Is.,
Saudi Arabia,
Senegal,
Seychelles,
Sicilia,
Sierra Leone,
Sinai,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
South Australia,
South Carolina,
South European Russia,
Southwest Caribbean,
Spain,
Sri Lanka,
St.Helena,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Taiwan,
Tanzania,
Tennessee,
Texas,
Thailand,
Togo,
Tokelau-Manihiki,
Tonga,
Transcaucasus,
Trinidad-Tobago,
Tuamotu,
Tubuai Is.,
Tunisia,
Turkey,
Turkey-in-Europe,
Turks-Caicos Is.,
Tuvalu,
Uganda,
Ukraine,
Uruguay,
Utah,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Victoria,
Vietnam,
Virginia,
Wallis-Futuna Is.,
West Himalaya,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Amur,
Ascension,
Austria,
Azores,
Belgium,
Bermuda,
Chagos Archipelago,
Chile Central,
Chita,
Colorado,
East Aegean Is.,
Easter Is.,
France,
Galápagos,
Germany,
Great Britain,
Idaho,
Inner Mongolia,
Irkutsk,
Juan Fernández Is.,
Kazakhstan,
Kirgizstan,
Line Is.,
Madeira,
Maine,
Manchuria,
Manitoba,
Mongolia,
Montana,
New Brunswick,
New Zealand South,
North Dakota,
Nova Scotia,
Oregon,
Primorye,
Prince Edward I.,
Québec,
Sardegna,
Saskatchewan,
South Dakota,
Tadzhikistan,
Tasmania,
Tibet,
Turkmenistan,
Uzbekistan,
Vermont,
Washington,
Wyoming,
Xinjiang