Mahonia is a genus of about 70 species of evergreen shrubs in the family Berberidaceae, native to eastern Asia, the Himalaya, North America and Central America. Mahonia typically have large, pinnate leaves 10–50 cm long with 5-15 leaflets, and flowers in racemes [5–20 cm long].
Several species are popular garden shrubs, grown for their ornamental, often spiny, evergreen foliage, yellow flowers in autumn, winter and early spring, and blue-black berries. The flowers are borne in terminal clusters or spreading racemes, and may be among the earliest flowers to appear in the growing season. The berries are edible, and rich in vitamin C, though with a very sharp flavor.