Fucus pinnatifidus Huds. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Rhodomelaceae genus Laurencia species Osmundea pinnatifida Name Homonyms Fucus pinnatifidus Huds. Fucus pinnatifidus Strøm Fucus pinnatifidus Oeder, 1767 Fucus pinnatifidus Hornemann