Arnica microphylla Walp.Repert.Bot.Syst. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Arnica species Arnica cordifolia Name Homonyms Arnica microphylla Walp. Arnica microphylla Walp.Repert.Bot.Syst.