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