Dictyocalyx quadrivalvis (Pursh) Hook.fil. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Solanales family Solanaceae genus Nicotiana species Nicotiana quadrivalvis Name Homonyms Dictyocalyx quadrivalvis (Pursh) Hook.fil. ex Walp. Dictyocalyx quadrivalvis (Pursh) Hook.fil.