This name is a synonym of Quercus garryana var. fruticosa (Engelm.) Govaerts.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 171877) with original publication details: Bot. California 2: 96 1880.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:215607-2.
This name was in version 1 of The Plant List, record kew-171877, and has not been changed.