Distribution: Introduced from southern British Columbia to southern California and Arizona, occasional farther east.
Habitat: From ocean beaches and salt marshes to sagebrush deserts.
Flowers: April - June
Conservation Status: Not of concern
Mostly glabrous annual 1-5 dm. tall with hollow culms, which are longitudinally grooved.
Sheaths open; leaf blades involute, up to 1.5 mm. broad; auricles lacking; ligules membranous, erose, 0.2-0.6 mm. long.
Inflorescence a narrow panicle with short, erect branches and pedicles 3-10 cm. long; spikelets 3- to 6-flowered; glumes unequal, the first 3-6 mm. long, 1-nerved, the second 5-8.5 mm. long, 3-nerved; lemmas glabrous, about 6.5 mm. long, with a terminal awn 5.5-13 mm. long; stamens usually 1, the anther purple; sometimes the lowest floret pistillate, and the other florets with 2-3 anthers.