Native to:
Alabama,
Angola,
Argentina Northeast,
Argentina Northwest,
Arizona,
Arkansas,
Assam,
Belize,
Bolivia,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burundi,
California,
Cameroon,
Cape Provinces,
Central African Repu,
Central American Pac,
Chile Central,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Connecticut,
Costa Rica,
Cuba,
Cyprus,
Delaware,
District of Columbia,
Dominican Republic,
East Himalaya,
Ecuador,
El Salvador,
Eritrea,
Ethiopia,
Florida,
Free State,
French Guiana,
Gabon,
Galápagos,
Georgia,
Ghana,
Guatemala,
Guinea,
Gulf of Guinea Is.,
Guyana,
Haiti,
Hawaii,
Honduras,
Illinois,
Indiana,
Iowa,
Ivory Coast,
Jamaica,
Japan,
Kansas,
Kentucky,
Kenya,
Korea,
KwaZulu-Natal,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Liberia,
Louisiana,
Madagascar,
Maine,
Malawi,
Manchuria,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mozambique,
Myanmar,
Nebraska,
Nepal,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Nicaragua,
Nigeria,
North Carolina,
Northern Provinces,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Puerto Rico,
Québec,
Rhode I.,
Rwanda,
Sierra Leone,
South Carolina,
Sudan,
Suriname,
Swaziland,
Taiwan,
Tanzania,
Tennessee,
Texas,
Tibet,
Trinidad-Tobago,
Turkey,
Uganda,
Uruguay,
Venezuela,
Vermont,
Vietnam,
Virginia,
West Himalaya,
West Virginia,
Windward Is.,
Wisconsin,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Afghanistan,
Albania,
Algeria,
Ascension,
Austria,
Azores,
Bahamas,
Baleares,
Belgium,
Bermuda,
Botswana,
Bulgaria,
Canary Is.,
Cape Verde,
Central European Rus,
Cook Is.,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
France,
Germany,
Great Britain,
Greece,
Hungary,
India,
Iran,
Italy,
Jawa,
Kriti,
Krym,
Libya,
Madeira,
Malaya,
Mauritius,
Morocco,
Namibia,
Netherlands,
New Caledonia,
New South Wales,
New Zealand North,
Norfolk Is.,
North Caucasus,
Northern Territory,
Palestine,
Portugal,
Primorye,
Queensland,
Romania,
Réunion,
Sardegna,
Sicilia,
South Australia,
South European Russi,
Spain,
Sri Lanka,
Sumatera,
Sweden,
Switzerland,
Transcaucasus,
Tunisia,
Turkey-in-Europe,
Ukraine,
Uzbekistan,
Victoria,
Western Australia,
Yugoslavia