This name is a synonym of Euphorbia fendleri Torr. & A.Gray.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 81977) with original publication details: Linnaea 22: 153 1849.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:348126-1.
This name was in version 1 of The Plant List, record kew-81977.