This name is a synonym of Euphorbia brachycera Engelm..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 78701) with original publication details: Collect. Bot. (Barcelona) 21: 184 1992 publ. 1993.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1084446-2.
This name was in version 1 of The Plant List, record kew-78701.