This name is a synonym of Dubyaea oligocephala (Sch.Bip.) Stebbins.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2A439F4B-AFF9-41DA-8545-3CED4F25E590) with original publication details: 320 1866.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:236388-1.
This name was in version 1 of The Plant List, record gcc-32849.