This name is a synonym of Euphorbia zambesiana Benth..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 38302) with original publication details: S. African J. Bot. 3: 263 1984.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:913797-1.
This name was in version 1 of The Plant List, record kew-38302, and has not been changed.