Equisetum fluviatile var. fluviatile Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum fluviatile Name Homonyms Equisetum fluviatile f. fluviatile Equisetum fluviatile var. fluviatile