Adiantum rigidulum Mett. ex Kuhn Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Pteridaceae genus Adiantum species Adiantum fragile Name Homonyms Adiantum rigidulum Mett. ex Kuhn Adiantum rigidulum Mett.