This name is a synonym of Pennisetum glaucum (L.) R.Br..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25547176) with original publication details: Descr. Pl. 304 1802.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:395323-1.
This name was in version 1 of The Plant List, record tro-25547176.