This name is a synonym of Euphorbia isaloensis Drake.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 80331) with original publication details: Notul. Syst. (Paris) 12: 163 1946.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:346931-1.
This name was in version 1 of The Plant List, record kew-80331.