This name is a synonym of Andropogon pringlei Scribn. & Merr..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 391838) with original publication details: Boissiera 9: 207 1960.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:12478-2.
This name was in version 1 of The Plant List, record kew-391838, and has not been changed.