Oregon grape n 1: small shrub with grey-green leaves and yellow flowers followed by glaucous blue berries [syn: {Oregon grape}, {Mahonia nervosa}] 2: ornamental evergreen shrub of Pacific coast of North America having dark green pinnate leaves and racemes of yellow flowers followed by blue-black berries [syn: {Oregon grape}, {Oregon holly grape}, {hollygrape}, {mountain grape}, {holly- leaves barberry}, {Mahonia aquifolium}]
Oregon grape \Or"e*gon grape`\ ([o^]r"[-e]*g[o^]n gr[=a]p`). (Bot.) An evergreen species of barberry ({Berberis Aquifolium}), of Oregon and California; also, its roundish, blue-black berries. [1913 Webster]