This name is a synonym of Euphorbia klotzschii Oudejans.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 38147) with original publication details: Lilloa 6: 299 1941.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:55368-2.
This name was in version 1 of The Plant List, record kew-38147.