Polypodium alpestre (Hoppe) Spenn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Athyriaceae genus Pseudathyrium species Pseudathyrium alpestre Name Homonyms Polypodium alpestre Hoppe Polypodium alpestre (Hoppe) Spenn. Polypodium alpestre Spreng. Polypodium alpestre Blume