This name is a synonym of Glyceria spiculosa (J.A.Schmidt) Roshev. ex B.Fedtsch..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 417848) with original publication details: Oesterr. Bot. Z. 87: 130 1938.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:404137-1.
This name was in version 1 of The Plant List, record kew-417848, and has not been changed.