Rhamnus crocea (Redberry buckthorn)

5/3/2018 · Barker Dam, Joshua Tree National Park, California · ≈ 12 × 8″ (31 × 20 cm)

5/3/2018 · Barker Dam, Joshua Tree National Park, California · ≈ 6 × 4″ (16 × 11 cm)

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Rosidae	Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
Order	Rhamnales	Buckthorns, oleasters, grapes, others
Family	Rhamnaceae	Buckthorn family
Genus	Rhamnus	From Greek for “buckthorn”
Species	crocea	Saffron-colored