This name is a synonym of Sporobolus fertilis (Steud.) Clayton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 444249) with original publication details: Grass. Japan 531 1987.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:954171-1.
This name was in version 1 of The Plant List, record kew-444249.