Athyrium subspinulosum Ching Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Athyriaceae genus Athyrium species Athyrium subspinulosum Name Homonyms Athyrium subspinulosum Ching Athyrium subspinulosum (Christ) Ching ex Vorosch.