Pergularia calesiana (Wight) Buch.-Ham. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Gongronemopsis species Gongronemopsis calesiana Name Homonyms Pergularia calesiana (Wight) Buch.-Ham. ex Hook.fil. Pergularia calesiana (Wight) Buch.-Ham. ex D.Dietr. Pergularia calesiana (Wight) Buch.-Ham.