? rigida Sw. Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Polypodiales family Dryopteridaceae genus Dryopteris species Dryopteris villarii Name Homonyms ? rigida Perner, 1907 ? rigida Sowerby, 1829 ? rigida Girty, 1908 ? rigida Scudder, 1890 ? rigida Dun, 1909 ? rigida Lightfoot ? rigida Sw. ? rigida E.Mey. ex Drège