Plectronia horrida (Blume) K.Schum. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Canthium species Canthium horridum Name Homonyms Plectronia horrida Elmer Plectronia horrida (Blume) Benth. & Hook.f. ex Kurz Plectronia horrida (Blume) K.Schum. Plectronia horrida (Blume) Benth. & Hook.f.