Distribution: Alaska to Baja California, east to Newfoundland and most of central and eastern United States.
Habitat: Moist areas, from coastal tideflats to mountain meadows and ridges.
Flowers: June - August
Origin: Both native and introduced
Conservation Status: Not of concern
Strongly tufted perennial with stout rhizomes, the stems terete, 2-10 dm. tall, finely grooved, 1.5-3 mm. thick.
Leaves bladeless or with a short, awn-like blade; leaf bases sheathing, the sheaths pale to deep brown, 5-12 cm. long.
Inflorescence apparently lateral, the involucral bract terete and resembling the stem, 5-20 cm. long, up to 1/3 the length of the stem; flowers numerous in a subcapitate to diffuse panicle up to 15 cm. long; perianth 2.5-3.5 mm. long, the 6 segments narrowly lanceolate; stamens 3, opposite the outer tepals.
Capsule equal to the perianth, obovoid but three-angled above, flat on the end.