This name is a synonym of Euphorbia pallens Dillwyn.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 331413) with original publication details: J. Econ. Taxon. Bot. 28: 92 2004.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:77063905-1.
This name was in version 1 of The Plant List, record kew-331413.