This name is a synonym of Helictotrichon parlatorei (J.Woods) Pilg..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25557307) with original publication details: Ill. Fl. Mitt.-Eur. 1: 256, 103 1906.
This name was in version 1 of The Plant List, record tro-25557307, and has not been changed.