This name is a synonym of Brassica elongata Ehrh..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100358849) with original publication details: Anales IV Congr. Latinamer. Bot. 60: 304 2003.
This name was in version 1 of The Plant List, record tro-100358849.