This name is a synonym of Helictotrichon pratense (L.) Pilg..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25559803) with original publication details: Bol. Soc. Iber. Ci. Nat. 1928.
This name was in version 1 of The Plant List, record tro-25559803.