Equisetum curvifolium Flörke Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum sylvaticum Name Homonyms Equisetum curvifolium Flörke ex Milde Equisetum curvifolium Flörke