This name is a synonym of Berberis × breviscapa (Ahrendt) Ahrendt.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Gard. Chron. III, 105: 372 1939.
This name was in version 1 of The Plant List, record kew-2674558.