This name is a synonym of Schoenoxiphium caricoides C.B.Clarke.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 453283) with original publication details: Bull. Misc. Inform. Kew Addit. Ser. 8: 67 1908.
This name record (from WCSP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Schoenoxiphium caricoides in version 1 of The Plant List.