Rumex maritimus subsp. athrix St.John Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Rumex species Rumex maritimus Name Homonyms Rumex maritimus var. athrix H.St.John Rumex maritimus subsp. athrix St.John