This name is a synonym of Andropogon hallii Hack..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25505310) with original publication details: Grass. N. Amer. 2: 55 1896.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:12839-2.
This name was in version 1 of The Plant List, record tro-25505310.