Griffithsia equisetifolia (Lightfoot) C.Agardh Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Wrangeliaceae genus Halurus species Halurus equisetifolius Name Homonyms Griffithsia equisetifolia (Lightfoot) C.Agardh