This name is a synonym of Stipagrostis lutescens var. marlothii (Hack.) De Winter.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 394860) with original publication details: Bot. Jahrb. Syst. 11: 400 1889.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:389584-1.
This name was in version 1 of The Plant List, record kew-394860, and has not been changed.