Houstonia Gronov. Dataset GBIF Backbone Taxonomy Rank GENUS Published in C.Linnaeus, Sp. Pl.: 105 (1753) Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Houstonia Name Synonyms Chamisme Nieuwl. Chamisme Raf. Panetos Raf. Poiretia J.F.Gmel. Homonyms Houstonia Boucek, 1988 Houstonia L. Houstonia Gronov.