Native to:
Alabama,
Argentina Northeast,
Argentina Northwest,
Arizona,
Arkansas,
Belize,
Bolivia,
California,
Colorado,
Dominican Republic,
Ecuador,
El Salvador,
Florida,
Guatemala,
Iowa,
Kansas,
Kentucky,
Louisiana,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mississippi,
Missouri,
Nebraska,
Nevada,
New Mexico,
Nicaragua,
Oklahoma,
Peru,
Texas,
Uruguay,
Utah,
Wyoming
Introduced into:
Albania,
Andaman Is.,
Assam,
Austria,
Azores,
Bahamas,
Bangladesh,
Belgium,
Benin,
Brazil South,
Burkina,
Cameroon,
Cape Verde,
Caroline Is.,
Cayman Is.,
Chad,
Chagos Archipelago,
Chile North,
China South-Central,
China Southeast,
Colombia,
Comoros,
Connecticut,
Cook Is.,
Costa Rica,
Cuba,
Czechoslovakia,
Denmark,
East Himalaya,
Finland,
France,
Gabon,
Gambia,
Georgia,
Germany,
Gilbert Is.,
Greece,
Guinea,
Gulf of Guinea Is.,
Haiti,
Illinois,
India,
Indiana,
Inner Mongolia,
Italy,
Ivory Coast,
Kazakhstan,
Korea,
Laos,
Leeward Is.,
Line Is.,
Maine,
Marianas,
Marshall Is.,
Massachusetts,
Michigan,
Myanmar,
Nauru,
New Caledonia,
New Hampshire,
New York,
New Zealand North,
New Zealand South,
Nicobar Is.,
Nigeria,
North Carolina,
Norway,
Ohio,
Oman,
Ontario,
Pakistan,
Panamá,
Pennsylvania,
Portugal,
Puerto Rico,
Québec,
Romania,
Sierra Leone,
South Carolina,
Spain,
St.Helena,
Sudan,
Sumatera,
Sweden,
Tadzhikistan,
Tennessee,
Tokelau-Manihiki,
Transcaucasus,
Trinidad-Tobago,
Turkey,
Turkmenistan,
Tuvalu,
Uzbekistan,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Vermont,
Vietnam,
Virginia,
Wake I.,
West Himalaya,
West Virginia,
Windward Is.,
Wisconsin,
Zaïre