Alstonia costata var. elliptica (J.W.Moore) Fosberg Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Alstonia species Alstonia costata Name Homonyms Alstonia costata var. elliptica (J.W.Moore) Fosberg