Ceanothus granulosus (Ruiz & Pav.) Brongn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rhamnaceae genus Frangula species Frangula granulosa Name Homonyms Ceanothus granulosus Ruiz & Pav. Ceanothus granulosus (Ruiz & Pav.) Brongn.