Gigartina obtusa Grev. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Gracilariales family Gracilariaceae genus Gracilaria species Gracilaria debilis Name Homonyms Gigartina obtusa Grev. ex J.Agardh, 1852 Gigartina obtusa Grev.