This name is a synonym of Isatis cochlearis Boiss..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100357322) with original publication details: Bull. Misc. Inform. Kew 1939: 186 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:285786-1.
This name was in version 1 of The Plant List, record tro-100357322, and has not been changed.