This name is a synonym of Gayophytum micranthum Hook. & Arn..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 23200392) with original publication details: Syst. Veg. 2: 228 1825.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:173175-2.
This name was in version 1 of The Plant List, record tro-23200392, and has not been changed.