This name is a synonym of Physaria integrifola (Rollins) Lichvar.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50067014) with original publication details: Rhodora 41(489): 407 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:195566-2.
This name was in version 1 of The Plant List, record tro-50067014.