This name is a synonym of Frangula purshiana subsp. anonifolia (Greene) J.O. Sawyer & S.W. Edwards.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50314106) with original publication details: Man. Fl. Pl. Calif. 614 1925.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:219048-2.
This name was in version 1 of The Plant List, record tro-50314106, and has not been changed.