Page authors: Don Knoke, David Giblin
Mahonia repens
creeping Oregon-grape
WTU specimens
Other herbaria

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains.

Habitat: Foothills to open forested slopes.

Flowers: April-June

Origin: Native

Conservation Status: Not of concern

Description:
General:

Procumbent, evergreen woody shrub 1-5 dm. tall, widely stoloniferous.

Leaves:

Leaves alternate, pinnate, leathery; leaflets 5-7, oblong to ovate, 3-7 cm. long and 2-5 cm. broad, pinnately nerved from the mid-vein, usually glossy above and dull and glaucous below and covered with minute, rounded projections , with 13-43 inconspicuous, spiny teeth.

Flowers:

Inflorescence of several bracteate racemes 3-6 cm. long; perianth of 5 alternating whorls of 3 members each; outer 3 greenish-yellow, 2-3 mm. long (bracts); next 6 bright yellow, 6-8 mm. long (sepals); inner 6 bright yellow, slightly shorter, bi-lobed, oblong (petals); stamens 6, opposite the petals; filaments with 2 divergent teeth at the tip; style none, stigma sessile.

Fruits:

Berry deep blue, glaucous, globose-ellipsoid, 7-14 mm. long.

Accepted Name:
Mahonia repens (Lindl.) G. Don

Synonyms & Misapplications:
Berberis aquifolium Pursh var. repens (Lindl.) Scoggan [JPM]
Berberis aquilifolium Pursh f. repens (Lindl.) B. Boivin
Berberis nana
Berberis repens Lindl. [FNA3, HC, HC2]
Berberis sonnei (Abrams) McMinn
Mahonia sonnei Abrams
Odostemon repens (Lindl.) Cockerell
Additional Resources:

PNW Herbaria: Specimen records of Mahonia repens in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Mahonia repens checklist entry.

E-Flora BC: Mahonia repens atlas page.

CalPhotos: Mahonia repens photos.

USDA Plants: Mahonia repens information.

35 photographs:
Group by