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      Cascade Oregon Grape (Mahonia nervosa / Berberis nervosa). Another stunning Pacific Northwest native shrub available at Sparrowhawk Native Plants Nursery in Portland, Oregon.
      Close-up of Cascade Oregon Grape flower (Mahonia nervosa / Berberis nervosa). Another stunning Pacific Northwest native shrub available at Sparrowhawk Native Plants Nursery in Portland, Oregon.
      Cascade Oregon Grape with berries (Mahonia nervosa / Berberis nervosa). Another stunning Pacific Northwest native shrub available at Sparrowhawk Native Plants Nursery in Portland, Oregon.
      Cascade Oregon Grape (Mahonia nervosa / Berberis nervosa). Another stunning Pacific Northwest native shrub available at Sparrowhawk Native Plants Nursery in Portland, Oregon.
      Very old and established population of Cascade Oregon Grape (Mahonia nervosa / Berberis nervosa). Another stunning Pacific Northwest native shrub available at Sparrowhawk Native Plants Nursery in Portland, Oregon.

      Cascade Oregon Grape

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      Mahonia nervosa / Berberis nervosa

      • Size at maturity: 2' tall, 2' wide
      • Canopy layer: small shrub
      • Light requirements: full shade, part sun / part shade
      • Moisture requirements: dry to moist soil
      • Growth rate: medium
      • Special features: evergreen, medicinal, wildlife favorite, supports hummingbirds

      The leaves of the Cascade Oregon Grape, while similar to those of Tall Oregon Grape, usually have 9–19 leaflets. The Tall Oregon Grape has only 5–9 leaflets. The upright clusters of fragrant yellow flowers appear from March to June, emerging from the center of the plant. The leaves are generally arranged in a circular fashion around a central stem, and may take on a reddish color in the winter. (Portland Plant List, 2016)

       

      Photo Credit 1: "Cascade Oregon-grape" by Mount Rainier NPS is licensed under CC BY 2.0

      Photo Credit 2: Tracy Cozine

      Photo Credit 3: "Oregon grape Berberis nervosa" by brewbooks is licensed under CC BY-SA 2.0

      Photo Credit 4: "File:Mahonia nervosa.jpg" by Meggar is licensed under CC BY-SA 3.0

      Photo Credit 5: "Thicket of Mahonia nervosa (low Oregon grape)" by Holy Outlaw is licensed under CC BY-ND 2.0