Aspidium nigrescens Mett. ex Kuhn Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Tectariaceae genus Tectaria species Tectaria angelicifolia Name Homonyms Aspidium nigrescens Mett. ex Kuhn Aspidium nigrescens Mett.