⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35120269, with some changes.

Trematodon flaccidisetus Cardot is a synonym of Trematodon longicollis Michx.

This name is a synonym of Trematodon longicollis Michx..

The record derives from Tropicos which reports it as a synonym (record 35120269) with original publication details: Beih. Bot. Centralbl. 17: 5. 4 5 1904.