Equisetum hiemale var. paleaceum Schleicher Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum hyemale Name Homonyms Equisetum hiemale var. paleaceum Schleicher Equisetum hiemale var. paleaceum Schleicher ex A.Braun