This name is a synonym of Brassica repanda subsp. latisiliqua (Boiss. & Reut.) Heywood.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Diagn. Esp. Nouv. 190 1864.
This name was in version 1 of The Plant List, record kew-2771313.