This name is a synonym of Frangula californica subsp. cuspidata (Greene) Kartesz & Gandhi.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 27501093) with original publication details: Leafl. Bot. Observ. Crit. 1(4): 64 1904.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:218993-2.
This name was in version 1 of The Plant List, record tro-27501093.