Native to:
Arizona,
California,
Mexico Northeast,
Mexico Northwest,
Nevada,
New Mexico,
Oregon,
Texas,
Utah,
Washington
Introduced into:
Alabama,
Algeria,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Assam,
Baleares,
Belgium,
Bolivia,
Canary Is.,
Cape Provinces,
Central European Russia,
Chile Central,
China South-Central,
China Southeast,
Colorado,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East European Russia,
Ecuador,
Finland,
France,
Germany,
Great Britain,
Hawaii,
Illinois,
Ireland,
Juan Fernández Is.,
Kentucky,
Korea,
Madeira,
Magadan,
Mexico Central,
Mexico Southeast,
Mexico Southwest,
Morocco,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Norway,
Peru,
Primorye,
Queensland,
Romania,
Rwanda,
South Australia,
South European Russia,
Spain,
Sweden,
Tasmania,
Tristan da Cunha,
Turkey,
Victoria,
West Himalaya,
Western Australia