Notholaena nivea subsp. oblongata Griseb. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Pteridaceae genus Argyrochosma species Argyrochosma nivea Name Homonyms Notholaena nivea var. oblongata Griseb.