⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50225140, with some changes.

Ionidium riparium A. Gray is a synonym of Hybanthus attenuatus (Humb. & Bonpl. ex Schult.) Schulze-Menz

This name is a synonym of Hybanthus attenuatus (Humb. & Bonpl. ex Schult.) Schulze-Menz.

The record derives from Tropicos which reports it as a synonym (record 50225140) with original publication details: Smithsonian Contr. Knowl. 5(6): 16 16 1853.