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Cascade Oregon-Grape
Photograph from Lewis and Clark Herbarium/Academy of Natural Sciences
Cascade Oregon-Grape
(Dwarf Oregon-Grape)
Mahonia nervosa (Berberis nervosa)
April 11, 1806, at Celilo Falls, Oregon.
A low, evergreen shrub. Flowers yellow, with petal-like parts in concentric whorls, 0.5 in (1.5 cm). Height: 24 in (60 cm), occasionally much taller.
Lowland wet forests.
Mainly west of the Cascades and Sierra Nevada from British Columbia south to central California; also Idaho.
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