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