Native to:
Alabama,
Alberta,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Belize,
Bolivia,
British Columbia,
California,
Chile Central,
Chile North,
China North-Central,
China South-Central,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Delaware,
District of Columbia,
East Himalaya,
Ecuador,
El Salvador,
Georgia,
Guatemala,
Honduras,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Kansas,
Kentucky,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nepal,
Nevada,
New Hampshire,
New Jersey,
New Mexico,
New York,
Nicaragua,
North Carolina,
North Dakota,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Peru,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
South Dakota,
Tennessee,
Texas,
Tibet,
Utah,
Vermont,
Virginia,
Washington,
West Himalaya,
West Virginia,
Wisconsin,
Wyoming
Introduced into:
Albania,
Algeria,
Angola,
Ascension,
Assam,
Austria,
Azores,
Bahamas,
Baleares,
Bangladesh,
Benin,
Bermuda,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Bulgaria,
Burundi,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caroline Is.,
Cayman Is.,
Central European Rus,
Chagos Archipelago,
China Southeast,
Christmas I.,
Comoros,
Cook Is.,
Cuba,
Czechoslovakia,
Desventurados Is.,
Dominican Republic,
East Aegean Is.,
Easter Is.,
Ethiopia,
Fiji,
Florida,
France,
Free State,
French Guiana,
Galápagos,
Gambia,
Germany,
Gilbert Is.,
Great Britain,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Guyana,
Haiti,
Hawaii,
Hungary,
Italy,
Jamaica,
Japan,
Jawa,
Juan Fernández Is.,
Kenya,
Korea,
Kriti,
Kuwait,
Laccadive Is.,
Laos,
Leeward Is.,
Lesser Sunda Is.,
Libya,
Madeira,
Malawi,
Marianas,
Marquesas,
Marshall Is.,
Mauritius,
Morocco,
Mozambique,
Namibia,
Nansei-shoto,
Nauru,
New Caledonia,
New South Wales,
Nicobar Is.,
Nigeria,
Niue,
Norfolk Is.,
Northern Provinces,
Pakistan,
Paraguay,
Pitcairn Is.,
Poland,
Puerto Rico,
Queensland,
Rodrigues,
Romania,
Rwanda,
Réunion,
Samoa,
Saudi Arabia,
Senegal,
Seychelles,
Sierra Leone,
Society Is.,
Solomon Is.,
Somalia,
South European Russi,
Southwest Caribbean,
Spain,
Sri Lanka,
St.Helena,
Sudan,
Suriname,
Sweden,
Tanzania,
Tasmania,
Thailand,
Tokelau-Manihiki,
Transcaucasus,
Trinidad-Tobago,
Tristan da Cunha,
Tuamotu,
Tubuai Is.,
Tunisia,
Turkmenistan,
Tuvalu,
Uganda,
Ukraine,
Uruguay,
Uzbekistan,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Victoria,
Vietnam,
Windward Is.,
Yemen,
Zambia,
Zaïre,
Zimbabwe