Sargassum polyphyllum J.Agardh, 1848 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum polyphyllum Name Synonyms Sargassum densum Dickie, 1877 Sargassum incisum Dickie, 1877 Sargassum polyphyllum var. densa Grunow, 1916 Sargassum polyphyllum var. fissifolium Grunow, 1886 Sargassum polyphyllum var. horridula (Grunow) Grunow, 1916 Homonyms Sargassum polyphyllum J.Agardh, 1848