This name is a synonym of Helictotrichon polyneurum (Hook.f.) Henrard.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25559090) with original publication details: Candollea 4: 381–383 1931.
This name was in version 1 of The Plant List, record tro-25559090, and has not been changed.