Vascular Plants - Ericaceae - Arctostaphylos:
Arctostaphylos columbiana
Page Author: David Giblin
hairy manzanita, bristly manzanita 
Blooms: May-July
Habit: shrub
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia south to California.
Habitat: Moist, open woods.
Species Description:

General: 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: 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.
Flowers: 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.
Fruits: Fruit a berry, depressed, 6-8 mm. broad.
Accepted Name:
Arctostaphylos columbiana Piper
Synonyms:
Arctostaphylos tomentosa (Pursh) Lindl.

Treated in Flora of the PNW as:
Arctostaphylos columbiana
Additional Resources:

PNW Herbaria Specimens: View list of all Arctostaphylos columbiana specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Arctostaphylos columbiana specimens in the WTU Herbarium database.

Washington Flora Checklist: Arctostaphylos columbiana treatment.

E-Flora BC: Arctostaphylos columbiana atlas page.

CalPhotos: Arctostaphylos columbiana images.

USDA Plants Database: Arctostaphylos columbiana.
Additional photographs of Arctostaphylos columbiana:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Clayton J. Antieau, 1987

Clayton J. Antieau, 1990

Clayton J. Antieau, 1988

Clayton J. Antieau, 2001

Paul Slichter, 2009

Paul Slichter, 2009

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

Ray Izumi, 2010

Ben Legler, 2011

Ben Legler, 2013

Ben Legler, 2013

Ray Izumi, 2013

Susan McDougall, 2014

Susan McDougall, 2014
(password required)

Burke Museum


©2017 Burke Museum of Natural History and Culture.
All Rights Reserved. Box 353010, University of Washington,
Seattle, WA 98195-3010, Phone: 206-543-5590.
On the UW campus at 17th Avenue NE and NE 45th Street.
Washington Native Plant Society
WA Native Plant Society