Sargassum wightii Grev. ex J.Agardh, 1848 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum swartzii Name Homonyms Sargassum wightii Grev. Sargassum wightii Grev. ex J.Agardh, 1848