Nephrodium filix-mas var. elongatum Sim Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dryopteridaceae genus Dryopteris species Dryopteris inaequalis Name Homonyms Nephrodium filix-mas var. elongatum (Aiton) Hook. Nephrodium filix-mas var. elongatum Sim