This name is a synonym of Sporobolus laxus B.K.Simon.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 444268) with original publication details: Blumea 35: 452 1991.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:965922-1.
This name was in version 1 of The Plant List, record kew-444268, and has not been changed.