Rumex giganteus subsp. coccineus Fosberg Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Polygonaceae genus Rumex species Rumex giganteus Name Homonyms Rumex giganteus f. coccineus Fosberg Rumex giganteus subsp. coccineus Fosberg