This name is a synonym of Erysimum linifolium (Pers.) J.Gay.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50151232) with original publication details: Gen. Sp. Pl. 20 1816.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:285195-1.
This name was in version 1 of The Plant List, record tro-50151232, and has not been changed.