⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-65797, with some changes.

Arnica subplumosa var. macilenta (Greene) A.Nelson is a synonym of Arnica chamissonis Less.

This name is a synonym of Arnica chamissonis Less..

The record derives from TICA which reports it as a synonym (record 453C3D45-1A1A-4812-B47E-C9B00D370F85) with original publication details: 573 1909.