Scarification: Soak in water, let stand in water for 12 hours. Stratification: cold stratify for 150 days. Germination: sow seed 1/16" deep, tamp the soil, mulch the seed bed.
It is an evergreen shrub with short vertical stems, mostly under 30 cm, while the leaves reach higher, rarely up to 2 m tall. The leaves are compound , with 9-19 leaflets; each leaflet is strongly toothed, reminiscent of holly , and somewhat shiny, but less so than Tall Oregon-grape.
The leaflets do not have a single central vein as in that species, but several veins arranged fan-like, branched from the leaflet base, hence the epithet nervosa. The flowers and fruit are like those of other Oregon-grapes; like them they are edible but just as sour.