Native to:
Afghanistan,
Alabama,
Albania,
Algeria,
Angola,
Arkansas,
Azores,
Baltic States,
Bangladesh,
Belarus,
Belize,
Benin,
Bermuda,
Bolivia,
Botswana,
Brazil North,
Brazil South,
Brazil West-Central,
Bulgaria,
Burkina,
Burundi,
California,
Cameroon,
Cape Provinces,
Central African Repu,
Central American Pac,
Central European Rus,
Chad,
Colombia,
Congo,
Corse,
Costa Rica,
Cuba,
Czechoslovakia,
Delaware,
District of Columbia,
Dominican Republic,
East Aegean Is.,
East European Russia,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
Florida,
France,
Gabon,
Gambia,
Georgia,
Germany,
Ghana,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Guyana,
Honduras,
Hungary,
Illinois,
India,
Indiana,
Iran,
Iraq,
Italy,
Ivory Coast,
Jamaica,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Kirgizstan,
Kriti,
Krym,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Louisiana,
Madagascar,
Madeira,
Malawi,
Mali,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Mississippi,
Missouri,
Morocco,
Mozambique,
Namibia,
New Jersey,
New York,
Nicaragua,
Niger,
Nigeria,
North Carolina,
North Caucasus,
Northern Provinces,
Northwest European R,
Ohio,
Oklahoma,
Ontario,
Pakistan,
Palestine,
Panamá,
Pennsylvania,
Poland,
Portugal,
Puerto Rico,
Romania,
Rwanda,
Sardegna,
Senegal,
Sicilia,
Sierra Leone,
South Carolina,
South European Russi,
Spain,
Sudan,
Swaziland,
Switzerland,
Tadzhikistan,
Tanzania,
Tennessee,
Texas,
Togo,
Transcaucasus,
Trinidad-Tobago,
Tunisia,
Turkey,
Turkey-in-Europe,
Uganda,
Ukraine,
Uzbekistan,
Venezuela,
Vietnam,
Virginia,
West Himalaya,
West Virginia,
Windward Is.,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Extinct in:
Belgium,
Netherlands
Introduced into:
Austria,
New South Wales,
Queensland