Cystopteris fragilis var. fragilis Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Cystopteridaceae genus Cystopteris species Cystopteris fragilis Name Homonyms Cystopteris fragilis f. fragilis Cystopteris fragilis var. fragilis Cystopteris fragilis subsp. fragilis