Equisetum eburneum Schreb. ex Rorth Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum telmateia Name Homonyms Equisetum eburneum Schreb. Equisetum eburneum Schreb. ex Roth Equisetum eburneum Schreb. ex Rorth