Page authors: David Giblin, Don Knoke
Ventenata dubia

Distribution: Chiefly in the eastern portion of Washington; British Columbia south to California, east to the Rocky Mountains; also in eastern North America.

Habitat: Roadsides, pastures, crop land, and other disturbed sites.

Flowers: June-July

Origin: Introduced

Growth Duration: Annual

Conservation Status: Not of concern


Annual with hollow stems, branched from the base.


Sheaths open; leaf blades flat but becoming involute, 1-3 mm. broad, glabrous above and scabrous below; ligules 1-8 mm. long, membranous, glabrous, obtuse and lacerate.


Inflorescence an open panicle 1-4 dm. long, the branches spreading to drooping; spikelets usually 3-flowered, articulate above the glumes; glumes sometimes awn-tipped, the first 5-6.5 mm. long, 6-or7-nerved, the second 7-9 mm. long, 8- or 9-nerved; first lemma exceeding the glumes, awned from the acuminate tip, the awn 1-2 mm. long; upper lemmas with bristle-like teeth 1.5-2 mm. long and with a dorsal, twisted awn 10-16 mm. long.



Accepted Name:
Ventenata dubia (Leers) Coss.
Publication: Expl. Sci. Algérie 2: 104. 1855.

Synonyms & Misapplications:
Avena dubia Leers
Ventenata avenacea Koel., superfluous renaming (illegitimate)
Additional Resources:

PNW Herbaria: Specimen records of Ventenata dubia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Ventenata dubia checklist entry.

E-Flora BC: Ventenata dubia atlas page.

CalPhotos: Ventenata dubia photos.

USDA Plants: Ventenata dubia information.

27 photographs:
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