This name is a synonym of Hierochloe utriculata (Ruiz & Pav.) Kunth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397446) with original publication details: Syst. Veg. 2: 677 1817.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391404-1.
This name was in version 1 of The Plant List, record kew-397446, and has not been changed.