Alstonia macrophylla subsp. glabra A.DC. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Alstonia species Alstonia macrophylla Name Homonyms Alstonia macrophylla var. glabra A.DC. Alstonia macrophylla subsp. glabra A.DC.