Aspidium expansum A.Dietr., 1826 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dryopteridaceae genus Dryopteris species Dryopteris filix-mas Name Homonyms Aspidium expansum (Willd.) Willd. Aspidium expansum A.Dietr., 1826 Aspidium expansum Mart. Aspidium expansum (Poir.) Desv. Aspidium expansum Fée Aspidium expansum D.Dietr.