Equisetum xlittorale Kühlew. ex Rupr. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum litorale Name Homonyms Equisetum xlittorale Kühlew. ex Rupr. Equisetum xlittorale Kühlew.