Osmunda regalis f. plumieri (Tausch) Rouy, 1913 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Osmundales family Osmundaceae genus Osmunda species Osmunda regalis Name Homonyms Osmunda regalis var. plumieri (Tausch) P.E.Fourn.