Native to:
Alabama,
Albania,
Algeria,
Altay,
Amur,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Assam,
Austria,
Bahamas,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Belize,
Bismarck Archipelago,
Bolivia,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Bulgaria,
Burundi,
Buryatiya,
California,
Cameroon,
Cape Provinces,
Central European Rus,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Colorado,
Connecticut,
Corse,
Costa Rica,
Cuba,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
East European Russia,
East Himalaya,
Ecuador,
El Salvador,
Eritrea,
Ethiopia,
Falkland Is.,
Fiji,
Finland,
Florida,
France,
Free State,
French Guiana,
Føroyar,
Galápagos,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Guyana,
Hainan,
Haiti,
Honduras,
Hungary,
Iceland,
Idaho,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Italy,
Jamaica,
Japan,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
KwaZulu-Natal,
Labrador,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Louisiana,
Madagascar,
Maine,
Malawi,
Manchuria,
Manitoba,
Marquesas,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands,
Nevada,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nicaragua,
Nigeria,
Norfolk Is.,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northern Provinces,
Northern Territory,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Puerto Rico,
Queensland,
Québec,
Rhode I.,
Romania,
Rwanda,
Sakhalin,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
Southwest Caribbean,
Spain,
Sudan,
Suriname,
Swaziland,
Sweden,
Switzerland,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tibet,
Transcaucasus,
Trinidad-Tobago,
Turkey,
Turkey-in-Europe,
Turks-Caicos Is.,
Tuva,
Uganda,
Ukraine,
Uruguay,
Utah,
Venezuela,
Venezuelan Antilles,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Afghanistan,
Andaman Is.,
Ascension,
Azores,
Baleares,
Benin,
Bermuda,
Borneo,
Burkina,
Cambodia,
Canary Is.,
Cape Verde,
Caroline Is.,
Cayman Is.,
Central African Repu,
Chad,
Christmas I.,
Comoros,
Congo,
Cook Is.,
Crozet Is.,
Cyprus,
Desventurados Is.,
Djibouti,
East Aegean Is.,
Easter Is.,
Egypt,
Gabon,
Ghana,
Gilbert Is.,
Guinea,
Gulf of Guinea Is.,
Gulf States,
Hawaii,
Iran,
Ivory Coast,
Jawa,
Kazan-retto,
Kerguelen,
Kermadec Is.,
Kirgizstan,
Kriti,
Krym,
Laos,
Lebanon-Syria,
Liberia,
Libya,
Madeira,
Malaya,
Maluku,
Marianas,
Mauritius,
Montana,
Morocco,
Nauru,
Netherlands Antilles,
Nicobar Is.,
Niue,
Ogasawara-shoto,
Oman,
Palestine,
Pitcairn Is.,
Qinghai,
Rodrigues,
Réunion,
Samoa,
Sardegna,
Saudi Arabia,
Selvagens,
Seychelles,
Sicilia,
Sierra Leone,
Sinai,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
South China Sea,
South European Russi,
Sri Lanka,
St.Helena,
Sulawesi,
Sumatera,
Tadzhikistan,
Thailand,
Togo,
Tonga,
Tristan da Cunha,
Tuamotu,
Tubuai Is.,
Tunisia,
Uzbekistan,
Vanuatu,
Yemen