⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35164553, with some changes.

Hymenodon helvolus Müll. Hal. is a synonym of Hymenodon pilifer Hook. f. & Wilson

The record derives from Tropicos which reports it as a synonym (record 35164553) with original publication details: Hedwigia 36: 332 332 1897.