Sargassum siliquastrum var. nipponense Grunow, 1915 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum siliquastrum Name Homonyms Sargassum siliquastrum var. nipponense Grunow, 1915