This name is a synonym of Psephellus hypoleucus (DC.) Boiss..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 333B349C-4F83-4B42-BD0B-72F7F1E6CC1B) with original publication details: 575 1838.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190688-1.
This name was in version 1 of The Plant List, record gcc-82847.