| Scientific Name: | Berberis nervosa ( syn. Mahonia nervosa ) |
| Common Name: | longleaf mahonia, dull Oregon grape |
| Family Name: | Berberidaceae |
| Origin: | B.C. west of Cascades, U.S. - northwest |
| Hardiness Zone: | Zone 6: (-23 to -18 °C) |
| Plant Type: | Broadleaf evergreen |
| Mature Size: | 0.4 - 0.7m x 0.6 - 1.0m (height x width) |
| Habit: | Spreading |
| Form: | Mounded |
| Texture: | Medium |
| Landscape Uses: | Attract beneficial insects, Group or mass planting, Herb, Reclamation, Woodland margin |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Acidic, Well-drained |
| Leaves: | Compound, Alternate, Leathery, Prickly, Lustrous, Odd-pinnate, Ovate, Spinose |
| Flowers: | Raceme, Yellow, May-Jun |
| Fruit: | Berry (true), Edible, Blue, Aug-Sep |
| Key ID Features: | |
| Leaves alternate, pinnately-compound, 30-45cm long, with (9-)11-19(-21) leathery lanceolate leaflets, most 3-9cm long, margins with (6-)8-13(-15) spiny teeth; racemes in clusters, yellow florets with 6 petals, Apr-Jun; berries blue, glaucous, nearly round, 8-11mm wide. | |