Polystichum bigemmatum Ching Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dryopteridaceae genus Polystichum species Polystichum bigemmatum Name Homonyms Polystichum bigemmatum Ching ex L.L.Xiang Polystichum bigemmatum Ching