This name is a synonym of Berberis vulgaris subsp. australis (Boiss.) Heywood.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Sin. Fl. Iber. 24: 373 1975.
This name was in version 1 of The Plant List, record kew-2674624, and has not been changed.