This name is a synonym of Quercus rex Hemsl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 332009) with original publication details: Dansk Bot. Ark. 23: 503 1968.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:358505-1.
This name was in version 1 of The Plant List, record kew-332009, and has not been changed.