Osmunda regalis subsp. japonica (Thunb.) Milde 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 subsp. japonica (Thunb.) Á.Löve & D.Löve Osmunda regalis var. japonica (Thunb.) Milde Osmunda regalis subsp. japonica (Thunb.) Milde