Mahonia nervosa Pursh
dull Oregon-grape (Cascade barberry)
Berberidaceae (Barberry family)

Introduction to Vascular Plants

Photograph

© Lydia Dani     (Photo ID #79570)


Map

E-Flora BC Static Map

Distribution of Mahonia nervosa
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Species Information

General:
Evergreen shrub from a rhizome; stems branched, erect, 10-60 cm tall, leafy; bark and wood yellowish.
Leaves:
Evergreen, hollylike, turning reddish in the fall, alternate, pinnate; leaflets 9-19, palmately nerved, with spiny teeth.
Flowers:
Inflorescence of clustered racemes up to 20 cm long; flowers yellow, the segments in 6's.
Fruits:
Clustered berries 8-11 mm in diameter, blue, glaucous, with a few large seeds, edible.

SourceThe Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Mid Spring
Fruit/Seed characteristics:
Colour: Blue
Present from Spring to Summer
Source:  The USDA

Habitat and Range

Mesic to dry open slopes and open forests in the lowland, steppe and montane zones; common in SW BC, infrequent eastward in S BC; S to CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Berberis nervosa Pursh
Berberis nervosa var. mendocinensis J.B. Roof
Mahonia nervosa var. mendocinensis (J.B. Roof) J.B. Roof
Odostemon nervosus (Pursh) Rydb.