This name is a synonym of Euphorbia graminea Jacq..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 79924) with original publication details: Prodr. 15(2): 54 1862.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:101569-2.
This name was in version 1 of The Plant List, record kew-79924.