This name is a synonym of Euphorbia ocellata subsp. arenicola (Parish) Oudejans.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 38134) with original publication details: Intermountain Fl. 3A: 278 1997.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1014701-1.
This name was in version 1 of The Plant List, record kew-38134, and has not been changed.