Houstonia bryoides Roem. & Schult. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Arcytophyllum species Arcytophyllum filiforme Name Homonyms Houstonia bryoides Roem. & Schult. Houstonia bryoides Willd.