Notholaena sulphurea var. alba Mett. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Pteridaceae genus Notholaena species Notholaena candida Name Homonyms Notholaena sulphurea var. alba Mett. ex Kuhn Notholaena sulphurea var. alba Mett.