- berries taste sour.
- varieties in the Pacific Northwest are Tall oregon grape (Mahonia aquifolium), Creeping oregon-grape (Berberis repens), and Dwarf oregon-grape (Berberis nervosa)
- Tall oregon-grape is a shrub that grows on foothill slopes.
- Creeping oregon-grape is under a foot tall and grows on forested foothill and montane slopes.
- Dwarf oregon-grape is under a foot tall and grows on forested foothill slopes.
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