Dryopteris nigrisquama subsp. typica H.Itô Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dryopteridaceae genus Dryopteris species Dryopteris scottii Name Homonyms Dryopteris nigrisquama subsp. typica H.Itô