Fucus vesiculosus var. grandifrons C.Agardh, 1821 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Fucaceae genus Fucus species Fucus vesiculosus Name Homonyms Fucus vesiculosus var. grandifrons C.Agardh, 1821