⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50067316, with some changes.

Echinodorus parvulus f. randii Fassett is a synonym of Helanthium tenellum (Mart. ex Schult.f.) J.G.Sm.

This name is a synonym of Helanthium tenellum (Mart. ex Schult.f.) J.G.Sm..

The record derives from Tropicos which reports it as a synonym (record 50067316) with original publication details: Rhodora 57: 188 188 1955.