Native to:
Afghanistan,
Alabama,
Albania,
Algeria,
Angola,
Argentina Northeast,
Argentina Northwest,
Arizona,
Arkansas,
Aruba,
Azores,
Bahamas,
Bangladesh,
Belize,
Benin,
Bermuda,
Bolivia,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Bulgaria,
Burkina,
Burundi,
Cabinda,
California,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Central African Repu,
Central American Pac,
Chad,
Colombia,
Colorado,
Comoros,
Congo,
Connecticut,
Corse,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
Djibouti,
Dominican Republic,
Ecuador,
Egypt,
Equatorial Guinea,
Eritrea,
Ethiopia,
Florida,
France,
Free State,
Gabon,
Galápagos,
Gambia,
Georgia,
Ghana,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Honduras,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Iran,
Iraq,
Italy,
Ivory Coast,
Jamaica,
Kansas,
Kentucky,
Kenya,
Kriti,
KwaZulu-Natal,
Leeward Is.,
Lesotho,
Liberia,
Libya,
Louisiana,
Madagascar,
Madeira,
Maine,
Malawi,
Mali,
Maryland,
Massachusetts,
Mauritania,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mozambique,
Namibia,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Nicaragua,
Niger,
Nigeria,
North Carolina,
North Caucasus,
North Dakota,
Northern Provinces,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Portugal,
Puerto Rico,
Québec,
Rhode I.,
Rwanda,
Senegal,
Sicilia,
Sierra Leone,
Somalia,
South Carolina,
South Dakota,
Spain,
Sudan,
Swaziland,
Tanzania,
Tennessee,
Texas,
Togo,
Transcaucasus,
Trinidad-Tobago,
Tunisia,
Turkey,
Uganda,
Uruguay,
Utah,
Venezuela,
Venezuelan Antilles,
Vermont,
Virginia,
Washington,
West Himalaya,
West Virginia,
Windward Is.,
Wisconsin,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Austria,
Belgium,
Cambodia,
China North-Central,
Germany,
Hawaii,
Hungary,
Japan,
Jawa,
Mauritius,
New Guinea,
New South Wales,
New Zealand North,
Poland,
Réunion,
St.Helena,
Taiwan,
Tristan da Cunha,
Ukraine,
Vietnam