This name is a synonym of Brassica insularis Moris.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Prodr. Fl. Corse 2(1): 73 1913.
This name was in version 1 of The Plant List, record kew-2682485, and has not been changed.