Spermacoce lanceolata Frank Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Houstonia species Houstonia purpurea Name Homonyms Spermacoce lanceolata Link Spermacoce lanceolata Frank ex C.Presl Spermacoce lanceolata Frank