noun
also oregon holly grape
Usage: usually capitalized O
: either of two small evergreen shrubs ( Mahonia aquifolium or M. nervosa ) that have stiff pinnate dark green leaves tending to turn bronzy in winter, fascicled racemes of usually yellow flowers, and globose blue berries, are native to the Pacific coast from northern California to British Columbia, and are cultivated in many temperate areas as shade-tolerant ornamentals — called also hollygrape, holly-leaved barberry, mountain grape
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Oregon grape
]