Mahonia aquifolium Pursh
tall Oregon-grape (hollyleaved barberry)
Berberidaceae (Barberry family)

Introduction to Vascular Plants

Photograph

© Brian Klinkenberg     (Photo ID #19779)


Map

E-Flora BC Static Map

Distribution of Mahonia aquifolium
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Species Information

General:
Evergreen shrub from a rhizome; stems branched, stoloniferous to stiffly erect, 0.5-2.5 (4.5) m tall; bark and wood yellowish.
Leaves:
Evergreen, hollylike, alternate, pinnate; leaflets usually 5-11, pinnately nerved, more than twice as long as broad, mostly with 12-29 prominent spiny teeth, shiny above but less so beneath.
Flowers:
Inflorescence of clustered racemes 3-8 cm long; flowers yellow, the segments in 6's.
Fruits:
Clustered berries 7-14 mm in diameter, blue, glaucous, with a few large seeds, edible.

Source:  The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Blue
Present over the Summer
Source:  The USDA

Habitat and Range

Mesic to dry open or closed forests in the lowland, steppe and montane zones; common in S BC; E to AB and S to ID and OR.

Source:  The Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Berberis aquifolium Pursh
Berberis aquifolium var. aquifolium
Berberis piperiana (Abrams) McMinn
Mahonia piperiana Abrams
Odostemon aquifolium (Pursh) Rydb.