Native to:
Argentina Northeast,
Argentina Northwest,
Bolivia,
Brazil South,
Brazil Southeast,
Colombia,
Costa Rica,
Ecuador,
El Salvador,
Guatemala,
Honduras,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Nicaragua,
Oregon,
Panamá,
Peru,
Venezuela
Introduced into:
Alabama,
Alberta,
Angola,
Arkansas,
Assam,
Austria,
Azores,
Bahamas,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Central African Repu,
China Southeast,
Colorado,
Connecticut,
Corse,
Cyprus,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
East Aegean Is.,
East Himalaya,
Eritrea,
Ethiopia,
Finland,
Florida,
France,
Georgia,
Germany,
Great Britain,
Greece,
Gulf of Guinea Is.,
Hawaii,
Hungary,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Italy,
Jamaica,
Japan,
Kansas,
Kentucky,
Korea,
Krym,
KwaZulu-Natal,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Madeira,
Maine,
Malaya,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Morocco,
Nebraska,
Nepal,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New York,
New Zealand North,
Newfoundland,
North Carolina,
North Caucasus,
North Dakota,
Northern Provinces,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Puerto Rico,
Québec,
Rhode I.,
Romania,
Saskatchewan,
Sicilia,
South Carolina,
Spain,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tennessee,
Transcaucasus,
Turkey,
Ukraine,
Vermont,
Vietnam,
Virginia,
Washington,
West Virginia,
Windward Is.,
Wisconsin,
Yugoslavia,
Zaïre,
Zimbabwe