Pteridium aquilinum f. pubescens Hieron. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dennstaedtiaceae genus Pteridium species Pteridium aquilinum Name Homonyms Pteridium aquilinum var. pubescens Underw. Pteridium aquilinum subsp. pubescens (Underw.) J.A.Thomson, Mickel & Mehltr. Pteridium aquilinum f. pubescens Hieron.