This name is a synonym of Physaria recurvata (Engelm. ex A. Gray) O'Kane & Al-Shehbaz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4101388) with original publication details: Proc. Amer. Acad. Arts 23(2): 253 1888.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:138839-2.
This name was in version 1 of The Plant List, record tro-4101388, and has not been changed.