This name is a synonym of Euphorbia lamarckii Sweet.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 81184) with original publication details: Encycl. Suppl. 2: 609 1812.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:347556-1.
This name was in version 1 of The Plant List, record kew-81184, and has not been changed.