Aspidium spinulosum var. muticum A.Braun Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dryopteridaceae genus Dryopteris species Dryopteris dilatata Name Homonyms Aspidium spinulosum var. muticum A.Braun ex Döll Aspidium spinulosum var. muticum A.Braun