Native to:
El Salvador,
Guatemala,
Honduras,
Mexico Central,
Mexico Gulf,
Mexico Southeast,
Mexico Southwest,
Nicaragua
Introduced into:
Afghanistan,
Alabama,
Albania,
Algeria,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Arizona,
Assam,
Baleares,
Bangladesh,
Belgium,
Benin,
Bolivia,
Borneo,
Botswana,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Bulgaria,
Burundi,
California,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Central European Russia,
Chile Central,
China North-Central,
China South-Central,
China Southeast,
Chita,
Christmas I.,
Colombia,
Connecticut,
Corse,
Cuba,
Cyprus,
Czechoslovakia,
Dominican Republic,
East Aegean Is.,
East European Russia,
Ecuador,
Egypt,
Ethiopia,
Fiji,
France,
Free State,
Germany,
Ghana,
Great Britain,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Haiti,
Hawaii,
Hungary,
Illinois,
India,
Indiana,
Inner Mongolia,
Iran,
Iraq,
Irkutsk,
Italy,
Ivory Coast,
Japan,
Jawa,
Kazakhstan,
Kentucky,
Kenya,
Kirgizstan,
Korea,
Kriti,
Krym,
KwaZulu-Natal,
Laccadive Is.,
Leeward Is.,
Lesser Sunda Is.,
Libya,
Maine,
Malawi,
Mali,
Manchuria,
Maryland,
Massachusetts,
Mexico Northwest,
Michigan,
Missouri,
Morocco,
Mozambique,
Myanmar,
Nebraska,
Nepal,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Niger,
Nigeria,
North Carolina,
North Caucasus,
Northern Provinces,
Ohio,
Oregon,
Pakistan,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Portugal,
Primorye,
Puerto Rico,
Qinghai,
Rhode I.,
Romania,
Rwanda,
Sardegna,
Saudi Arabia,
Sicilia,
Sierra Leone,
Sinai,
Society Is.,
Somalia,
South Carolina,
South China Sea,
South European Russia,
Spain,
Sudan,
Sumatera,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Texas,
Tibet,
Tonga,
Tubuai Is.,
Tunisia,
Turkmenistan,
Uganda,
Ukraine,
Utah,
Uzbekistan,
Venezuela,
Vermont,
Vietnam,
Washington,
West Virginia,
Western Sahara,
Windward Is.,
Wisconsin,
Yemen,
Yugoslavia,
Zambia,
Zaïre