This name is a synonym of Physaria pruinosa (Greene) O'Kane & Al-Shehbaz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4101385) with original publication details: Pittonia 4(25A): 307–308 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:138832-2.
This name was in version 1 of The Plant List, record tro-4101385, and has not been changed.