⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-102167, and has not been changed.

Arnica nudicaulis (Michx.) Nutt. is an unresolved name

This name is unresolved, but some data suggest that it is synonymous with Arnica acaulis (Walter) "Britton, Sterns & Poggenb.".

The record derives from TICA which does not establish this name either as an accepted name or as a synonym (record 6EABAE6A-DA99-442B-9A05-9E741A7A1E8D) with original publication details: The Genera of North American Plants 2: 164 1818.