Athyrium filix-femina f. rubellum Farw. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Athyriaceae genus Athyrium species Athyrium filix-femina Name Homonyms Athyrium filix-femina var. rubellum Gilbert Athyrium filix-femina f. rubellum Farw.