Page author: David Giblin
Arctostaphylos columbiana
bristly manzanita

Distribution: Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California.

Habitat: Dry forest openings and rocky slopes, mostly at low elevations.

Flowers: May-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, flies, hummingbirds


Erect or spreading shrubs 1-3 m. tall, simple at the base, the old branches with purplish-red bark; young twigs grayish-pubescent, also with scattered bristles which may be glandular.


Leaves alternate, ovate or lanceolate to elliptic, the blades 2-5 cm. long and 1-2.5 cm. broad, pointed, finely grayish-puberulent, the petioles 5 cm. long.


Inflorescence usually paniculate, densely pubescent, each flower subtended by a lanceolate bract 5-15 mm. long, exceeding the pedicels; flowers white or pinkish, 6-7 mm. long; corolla urn-shaped, the 5 short lobes spreading; stamens 10, the anthers opening by false terminal pores, each with 2 curved, reflexed, horn-like appendages; ovary superior, pubescent.


Fruit a berry, depressed, 6-8 mm. broad.

Accepted Name:
Arctostaphylos columbiana Piper
Publication: Fl. N.W. Coast. 279. 1915.

Synonyms & Misapplications:
Arctostaphylos tomentosa (Pursh) Lindl., misapplied [FNA8]
Additional Resources:

PNW Herbaria: Specimen records of Arctostaphylos columbiana in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Arctostaphylos columbiana checklist entry.

OregonFlora: Arctostaphylos columbiana information.

E-Flora BC: Arctostaphylos columbiana atlas page.

CalPhotos: Arctostaphylos columbiana photos.

USDA Plants: Arctostaphylos columbiana information.

31 photographs:
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