This name is a synonym of Acanthosyris spinescens Griseb..
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Comun. Mus. Nac. B. Aires 1: 314 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:780000-1.
This name was in version 1 of The Plant List, record kew-2615199, and has not been changed.