Plantae > Tracheophyta > Magnoliopsida > Rosales > Rhamnaceae > Frangula californica > Frangula californica crassifolia Frangula californica crassifoliaSynonyms: Rhamnus californica crassifolia (homotypic); Rhamnus californica var. crassifolia (homotypic); Rhamnus tomentella crassifolia (homotypic)
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