This name is a synonym of Panicum acuminatum Sw..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 408507) with original publication details: Brittonia 26: 60 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:79358-2.
This name was in version 1 of The Plant List, record kew-408507.