This name is a synonym of Gastridium ventricosum (Gouan) Schinz & Thell..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25502565) with original publication details: Elem. Bot. 3: 219 1791.
This name was in version 1 of The Plant List, record tro-25502565, and has not been changed.