Laminaria caespitosa (J.Agardh) J.Agardh Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Scytosiphonales family Scytosiphonaceae genus Petalonia species Petalonia fascia Name Homonyms Laminaria caespitosa (J.Agardh) J.Agardh