This name is a synonym of Quercus sinuata Walter.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 172634) with original publication details: Syn. Fl. Colorado 127 1874.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:296106-1.
This name was in version 1 of The Plant List, record kew-172634.