Pycnosphaera vanderystii DeWild. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Gentianaceae genus Pycnosphaera species Pycnosphaera buchananii Name Homonyms Pycnosphaera vanderystii De Wild. Pycnosphaera vanderystii DeWild.