Spermacoce cristata Willd. ex Roem. & Schult. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Exallage species Exallage cristata Name Homonyms Spermacoce cristata Willd. Spermacoce cristata Willd. ex Roem. & Schult.