This name is a synonym of Coelorachis cylindrica (Michx.) Nash.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 420823) with original publication details: Fl. Carol. 249 1788.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:406285-1.
This name was in version 1 of The Plant List, record kew-420823, and has not been changed.