Oregon Grape (Berberis aquifolium)

Photo Eric van den Berghe, CC via iNaturalist

Oregon Grape (Berberis aquifolium) is a species of flowering plant in the family Berberidaceae, native to western North America. It is an evergreen shrub with pinnate leaves consisting of spiny leaflets, and dense clusters of yellow flowers in early spring, followed by dark bluish-black berries.