This name is a synonym of Frangula rubra subsp. yosemitana (C.B.Wolf) Kartesz & Gandhi.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Rancho Santa Ana Bot. Gard. Monogr., Bot. Ser. 1: 90 1938.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:310782-2.
This name was in version 1 of The Plant List, record kew-2528962, and has not been changed.