Siderodendron Cothen. Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Ixora Name Homonyms Siderodendron E.G.Pringsheim, 1946 Siderodendron Cothen. Siderodendron Roem. & Schult., 1818