Distribution: Sparingly introduced in much of western United States; established in eastern Washington and Oregon.
Habitat: Weed of waste areas.
Growth Duration: Annual
Conservation Status: Not of concern
Glabrous, low, spreading annual, the culms 3-9 cm. tall.
Sheaths partially closed, compressed; ligules 0.5-1.5 mm. long; blades involute, the tip somewhat boat-shaped.
Inflorescence a terminal, spikelike raceme 1-5 cm. long, exceeded by the upper leaves; spikelets 3-flowered, subsessile, closely crowded on one side of the rachis, 6-10 mm. long; first glume 2-3 mm. long, 3-nerved, rounded at the tip; second glume 4-6 mm. long, 7-nerved, rounded at the tip; lemmas compressed, 4-6 mm. long, with 5 non-convergent nerves; paleas much shorter than the lemmas, sharply 2-keeled.