This name is a synonym of Euphorbia haussknechtii Boiss..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 80045) with original publication details: Fl. Orient. 4: 1107 1879.
This name was in version 1 of The Plant List, record kew-80045, and has not been changed.