This name is a synonym of Schizachyrium sanguineum (Retz.) Alston.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 441424) with original publication details: Fl. Bras. Enum. Pl. 2: 336 1829.
This name was in version 1 of The Plant List, record kew-441424.