Mahonia nervosa. 'Cascade' or 'Low' Oregon Grape is a northwest native evergreen shrub, growing slowly to about 2'. It is an excellent landscape plant for part to full shade, dry to moist, well drained soils. It is attractive in boarder plantings and as a higher groundcover to provide habitat, food and nectar. Native peoples of the Pacific Northwest use the tart berries for eating, dried or cooked, typically mixed with other foods, and the roots are used for medicinal tea and yellow dye. The berries also make good jelly and wine. Gold-yellow flowers are great early season nectar for native hummingbirds and bees. Zone 5.