Ceanothus greggii var. orbiculatus E.H.Kelso Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rhamnaceae genus Ceanothus species Ceanothus pauciflorus Name Homonyms Ceanothus greggii var. orbiculatus E.H.Kelso