This name is a synonym of Helosis cayennensis var. mexicana (Liebm.) B.Hansen.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Nuevo Cat. Fl. Vasc. Venezuela 266 2008.
This name was in version 1 of The Plant List, record kew-2872714, and has not been changed.