Joosia macrocalyx Standl. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Joosia species Joosia macrocalyx Name Homonyms Joosia macrocalyx Standl. ex Steyerm. Joosia macrocalyx Standl.