Clematis occidentalis A.Cunn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ranunculales family Ranunculaceae genus Clematis species Clematis microphylla Name Homonyms Clematis occidentalis (Hornem.) DC. Clematis occidentalis A.Cunn. ex Hook. Clematis occidentalis A.Cunn.