This name is a synonym of Sporobolus tenuissimus (Schrank.) Kuntze.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 444166) with original publication details: Mém. Soc. Agric. Angers 1: 164 1831.
This name was in version 1 of The Plant List, record kew-444166.