This name is a synonym of Helictotrichon pubescens (Huds.) Schult. & Schult.f..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25559848) with original publication details: Z. Ferdinandeums Tirol 5: 11 1855.
This name was in version 1 of The Plant List, record tro-25559848.