Nauclea microcephala Wall. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Nauclea species Nauclea microcephala Name Homonyms Nauclea microcephala Delile Nauclea microcephala Wall. ex Voigt Nauclea microcephala Wall.