Ceanothus americanus subsp. pitcheri Torr. & A.Gray Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rhamnaceae genus Ceanothus species Ceanothus americanus Name Homonyms Ceanothus americanus var. pitcheri Torr. & A.Gray