Page authors: Don Knoke, David Giblin
Bromus vulgaris
Columbian brome

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south along the coast to northern California, east to Alberta, Montana and Wyoming.

Habitat: Shaded to open woods or moist to dry banks, from near sea level to mountain meadows and dry, rocky slopes at 6000' elevation.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Non-rhizomatous perennial, the culms 6-10 dm. tall, usually pubescent at the nodes.


Sheaths closed, often with a few long hairs at the throat; ligules 2-3 mm. long; blades lax, flat, 5-10 mm. broad.


Inflorescence an open panicle 10-18 cm. long, the slender branches drooping; spikelets 5- to 7-flowered, 20-28 mm. long; first glume 5-8 mm. long, 1-nerved, the second 7-10 mm. long, 3-nerved; lemmas pubescent along the marginal nerves but glabrous toward the tip, 8-13 mm. long, with awns 3-8 mm. long from the bifid apex; anthers exerted.

Accepted Name:
Bromus vulgaris (Hook.) Shear
Publication: Bull. Div. Agrostol., U.S.D.A. 23: 43. 1900.

Synonyms & Misapplications:
Bromopsis vulgaris (Hook.) Holub
Bromus vulgaris (Hook.) Shear var. eximius Shear [HC]
Bromus vulgaris (Hook.) Shear var. robustus Shear
Bromus vulgaris (Hook.) Shear var. vulgaris [HC]
Additional Resources:

PNW Herbaria: Specimen records of Bromus vulgaris in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Bromus vulgaris checklist entry.

OregonFlora: Bromus vulgaris information.

E-Flora BC: Bromus vulgaris atlas page.

CalPhotos: Bromus vulgaris photos.

USDA Plants: Bromus vulgaris information.

23 photographs:
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