Rosa californica var. petersiana E.Mey. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Rosa species Rosa californica Name Homonyms Rosa californica var. petersiana E.Mey. Rosa californica var. petersiana C.A.Mey. Rosa californica var. petersiana Crép.