This name is a synonym of Physaria acutifolia Rydb..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4102067) with original publication details: Great Basin Naturalist 46(2): 255 1986.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:952790-1.
This name was in version 1 of The Plant List, record tro-4102067, and has not been changed.