Distribution: Southern Vancouver Island and the islands of Puget Sound, south along the coast to Mendocino County, California.
Habitat: Chiefly on sand dunes.
Flowers: April - July
Conservation Status: Not of concern
Strongly rhizomatous, dioecious perennial, the culms hollow, glabrous, 2-4 dm. tall.
Sheaths glabrous, open most of their length, but closed as least for the lower 2-3 cm.; ligules 1-1.5 mm. long, thick, strongly pubescent, truncate, highest on the sides; blades stiff and involute, in dense basal tufts, up to 3 mm. broad, 5-12 cm. long, the tips only slightly prow-like.
Inflorescence a compact panicle 4-12 cm. long, the branches short, stiff and ascending; spikelets 4- to 6-flowered, occasionally bulbiferous; glumes subequal, about 9 mm. long, 5-nerved, keeled; lemmas about 9 mm. long, 7- to 11-nerved, pubescent on the keel and marginal nerves, the rachilla also pubescent with soft, straight hairs; staminate flowers with anthers 3.5 mm. long, pistillate flowers with vestigial stamens.