Polypodium leucosorum Bojer ex Hook. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Polypodiaceae genus Ceradenia species Ceradenia leucosora Name Homonyms Polypodium leucosorum Bojer Polypodium leucosorum Bojer ex Hook.