Osmunda regalis subsp. biformis Benth. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Osmundales family Osmundaceae genus Osmunda species Osmunda japonica Name Homonyms Osmunda regalis var. biformis Benth. Osmunda regalis subsp. biformis Benth.