Native to:
Afghanistan,
Algeria,
Angola,
Bangladesh,
Benin,
Borneo,
Botswana,
Burkina,
Burundi,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caroline Is.,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
Congo,
Cook Is.,
Cyprus,
East Aegean Is.,
East Himalaya,
Egypt,
Equatorial Guinea,
Eritrea,
Ethiopia,
Free State,
Gabon,
Gambia,
Ghana,
Guinea,
Gulf of Guinea Is.,
Gulf States,
Hainan,
India,
Iran,
Iraq,
Ivory Coast,
Japan,
Jawa,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Kuwait,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Liberia,
Libya,
Madagascar,
Madeira,
Malawi,
Malaya,
Mali,
Maluku,
Marianas,
Mauritania,
Mauritius,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
New Guinea,
Nicobar Is.,
Niger,
Nigeria,
North Caucasus,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Palestine,
Philippines,
Queensland,
Rodrigues,
Rwanda,
Réunion,
Saudi Arabia,
Senegal,
Seychelles,
Sierra Leone,
Sinai,
Somalia,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Tadzhikistan,
Taiwan,
Tanzania,
Thailand,
Togo,
Transcaucasus,
Tunisia,
Turkey,
Turkmenistan,
Uganda,
Uzbekistan,
Vietnam,
West Himalaya,
Western Australia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alabama,
Albania,
Amur,
Andaman Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Austria,
Azores,
Bahamas,
Baleares,
Belgium,
Belize,
Bermuda,
Bolivia,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Bulgaria,
California,
Cayman Is.,
Central European Rus,
Chile Central,
Chile North,
Chile South,
Christmas I.,
Cocos (Keeling) Is.,
Colombia,
Colorado,
Comoros,
Connecticut,
Corse,
Costa Rica,
Cuba,
Czechoslovakia,
Delaware,
Desventurados Is.,
District of Columbia,
Djibouti,
Dominican Republic,
Easter Is.,
Ecuador,
El Salvador,
Fiji,
Florida,
France,
French Guiana,
Galápagos,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Guinea-Bissau,
Guyana,
Haiti,
Hawaii,
Honduras,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Italy,
Jamaica,
Kansas,
Kentucky,
Khabarovsk,
Kriti,
Krym,
Leeward Is.,
Louisiana,
Maine,
Manchuria,
Marquesas,
Marshall Is.,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Caledonia,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Nicaragua,
Niue,
Norfolk Is.,
North Carolina,
North Dakota,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Pitcairn Is.,
Portugal,
Primorye,
Puerto Rico,
Québec,
Rhode I.,
Romania,
Sakhalin,
Samoa,
Sardegna,
Sicilia,
Society Is.,
Solomon Is.,
South Carolina,
South Dakota,
South European Russi,
Spain,
St.Helena,
Suriname,
Sweden,
Switzerland,
Tennessee,
Texas,
Tonga,
Trinidad-Tobago,
Tuamotu,
Tubuai Is.,
Turkey-in-Europe,
Ukraine,
Uruguay,
Utah,
Vanuatu,
Venezuela,
Vermont,
Virginia,
Wake I.,
Wallis-Futuna Is.,
Washington,
West Virginia,
Windward Is.,
Wisconsin,
Wyoming,
Xinjiang,
Yemen,
Yugoslavia