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