Mahonia aquifolium
Oregon grape
Ok, it's not native here, but it is native over on the northwest coast. Mahonia has bright yellow flowers in winter, edible fruit that attracts songbirds, and tolerates drought or watering, sun or shade. Prickly leaves resemble holly. This original species is tall and rangy, but new forms have more compact growth habit, shinier leaves, coppery new growth, and more abundant bloom.