This name is a synonym of Sparganium subglobosum Morong.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym and as an illegitimate name (record 266019) with original publication details: Prodr. Fl. Nov. Holl. 189 1810.
This name was in version 1 of The Plant List, record kew-266019.