Page author: Don Knoke
Hordeum depressum
dwarf barley

Distribution: Introduced from Vancouver Island, British Columbia, south on both sides of the Cascades to southern California, east to western Idaho.

Habitat: A weed of waste areas, especially where moist.

Flowers: April - June

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Glabrous to hairy annual, the culms 1-4 dm. tall.


Sheaths open; auricles lacking; ligules 0.2-0.6 mm. long; blades pubescent, 2-4 mm. broad.


Inflorescence a terminal spike, usually erect, 3-6 cm. long, sometimes partly concealed by the upper leaf sheath; spikelets 3 per node, 1-flowered, the central spikelet sessile, its lemma with an awn up to 10 mm. long; lateral spikelets with short, straight pedicles 1 mm. long, the floret rudimentary, awnless, borne on a curved rachilla about 1 mm. long; glumes all slender and awn-like, 8-15 mm. long, only 0.6 mm. broad at the widest point.

Accepted Name:
Hordeum depressum (Scribn. & J.G. Sm.) Rydb.
Publication: Bull. Torrey Bot. Club 36: 539. 1909.

Synonyms & Misapplications:
Critesion depressum (Scribn. & J.G. Sm.) Á. Löve
Additional Resources:

PNW Herbaria: Specimen records of Hordeum depressum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Hordeum depressum checklist entry.

E-Flora BC: Hordeum depressum atlas page.

CalPhotos: Hordeum depressum photos.

USDA Plants: Hordeum depressum information.

2 photographs:
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