This name is a synonym of Muhlenbergia glomerata (Willd.) Trin..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 437747) with original publication details: Hort. Berol. 1: 84 1827.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:418415-1.
This name was in version 1 of The Plant List, record kew-437747, and has not been changed.