Howardia sellowiana (Klotzsch) Duch. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Piperales family Aristolochiaceae genus Aristolochia species Aristolochia triangularis Name Homonyms Howardia sellowiana Klotzsch Howardia sellowiana (Klotzsch) Duch.