This name is a synonym of Malcolmia littorea (L.) R.Br..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100358824) with original publication details: Rech. Anat. Taxon. Fam. Crucifer. 2: 444 1821.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:286733-1.
This name was in version 1 of The Plant List, record tro-100358824, and has not been changed.