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Rhamnus crocea, the spiny redberry, is a species of plant in the family Rhamnaceae. There are two subspecies: Rhamnus crocea subsp. crocea (redberry buckthorn) and Rhamnus crocea subsp. pilosa (hollyleaf buckthorn). It is native to California, Arizona, and Baja California.
Prunus ilicifolia (Common names: "hollyleaf cherry", "evergreen cherry"; "islay" - Salinan Native American) It is native to the chaparral areas of coastal California (from Mendocino County to San Diego County), Baja California, and Baja California Sur. as well as the desert chaparral areas of the Mojave desert.