Guaiacum guatemalense Herb.Kew. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Zygophyllales family Zygophyllaceae genus Guaiacum species Guaiacum sanctum Name Homonyms Guaiacum guatemalense Planch. ex Rydb. & Vail Guaiacum guatemalense Planch. ex Hemsl. Guaiacum guatemalense Herb.Kew. ex Brigham Guaiacum guatemalense Herb.Kew. Guaiacum guatemalense Planch.