Sargassum obtusifolium J.Agardh, 1848 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum obtusifolium Name Synonyms Sargassum divaricatum var. chilensis Grunow, 1915 Sargassum hawaiiense Doty & Newhouse, 1966 Sargassum obtusifolium f. chamberlainii Grunow, 1916 Sargassum obtusifolium f. lendigersides Grunow, 1916 Sargassum skottsbergii Sjöestedt, 1924 Homonyms Sargassum obtusifolium J.Agardh, 1848