This name is a synonym of Euphorbia hunzikeri Subils.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 38028) with original publication details: Folia Geobot. Phytotax. 12: 425 1977.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:340673-1.
This name was in version 1 of The Plant List, record kew-38028, and has not been changed.