This name is a synonym of Euphorbia celastroides Boiss..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50254021) with original publication details: Fl. Hawaii. Fam. 190(Chamaesyce): part 5 1959.
This name was in version 1 of The Plant List, record tro-50254021, and has not been changed.