This name is a synonym of Echinochloa pyramidalis (Lam.) Hitchc. & Chase.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 410355) with original publication details: Caribbean Forester 5: 188 1944.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:88107-2.
This name was in version 1 of The Plant List, record kew-410355, and has not been changed.