Native to:
Afghanistan,
Alabama,
Aldabra,
Algeria,
Andaman Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Bahamas,
Bangladesh,
Belize,
Benin,
Bermuda,
Bismarck Archipelago,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Burkina,
Burundi,
Cabinda,
California,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Cayman Is.,
Central African Repu,
Central American Pac,
Chad,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Colorado,
Comoros,
Congo,
Connecticut,
Cook Is.,
Costa Rica,
Cuba,
Delaware,
Desventurados Is.,
District of Columbia,
Djibouti,
Dominican Republic,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Equatorial Guinea,
Eritrea,
Ethiopia,
Fiji,
Florida,
Free State,
French Guiana,
Gabon,
Galápagos,
Gambia,
Georgia,
Ghana,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hainan,
Haiti,
Hawaii,
Honduras,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Ivory Coast,
Jamaica,
Japan,
Jawa,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Kermadec Is.,
Korea,
Kuwait,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Louisiana,
Madagascar,
Maine,
Malawi,
Malaya,
Mali,
Manchuria,
Marquesas,
Maryland,
Massachusetts,
Mauritania,
Mexican Pacific Is.,
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 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 Dakota,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Ohio,
Oklahoma,
Oman,
Ontario,
Oregon,
Pakistan,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Pitcairn Is.,
Puerto Rico,
Qinghai,
Queensland,
Québec,
Rhode I.,
Rwanda,
Réunion,
Samoa,
Saudi Arabia,
Senegal,
Seychelles,
Sicilia,
Sierra Leone,
Sinai,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
South Carolina,
South Dakota,
Southwest Caribbean,
Sri Lanka,
Sudan,
Suriname,
Swaziland,
Tadzhikistan,
Taiwan,
Tanzania,
Tennessee,
Texas,
Thailand,
Tibet,
Togo,
Tonga,
Transcaucasus,
Trinidad-Tobago,
Tuamotu,
Tubuai Is.,
Tunisia,
Turkey,
Turkmenistan,
Turks-Caicos Is.,
Uganda,
Uruguay,
Utah,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Western Sahara,
Windward Is.,
Wisconsin,
Wyoming,
Xinjiang,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Amur,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Bulgaria,
Cambodia,
Caroline Is.,
Central European Rus,
Chagos Archipelago,
Christmas I.,
Cocos (Keeling) Is.,
Corse,
Cyprus,
Czechoslovakia,
East Aegean Is.,
East European Russia,
Easter Is.,
France,
Gilbert Is.,
Great Britain,
Idaho,
Italy,
Kamchatka,
Kazan-retto,
Khabarovsk,
Kirgizstan,
Kriti,
Krym,
Kuril Is.,
Line Is.,
Madeira,
Magadan,
Maluku,
Marcus I.,
Marianas,
Marshall Is.,
Mauritius,
Mozambique Channel I,
Nauru,
New Zealand South,
North Caucasus,
North European Russi,
Northwest European R,
Phoenix Is.,
Poland,
Portugal,
Primorye,
Rodrigues,
Romania,
Sakhalin,
Sardegna,
South Australia,
South China Sea,
South European Russi,
Spain,
St.Helena,
Sulawesi,
Sumatera,
Tasmania,
Tokelau-Manihiki,
Tristan da Cunha,
Turkey-in-Europe,
Tuvalu,
Ukraine,
Uzbekistan,
Wake I.,
Wallis-Futuna Is.,
Yugoslavia