L. H. Bailey, Mem. Torrey Bot. Club. 1: 14. 1889.
Plants without conspicuous rhizomes. Culms 25—90 cm, 1.6—2 mm wide basally, 0.6—0.7 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, as long as wide; widest leaf blades 1.5—2.5(—3) mm wide. Inflorescences with 4—10 spikes, 1.5—3.5 cm × 6—10 mm; proximal internodes as long as to slightly longer than proximal spikes, rarely 2 times as long; proximal bracts to 3 cm; spikes with 3—10 ascending to spreading perigynia. Pistillate scales brown with green, 3-veined center, ovate, 3.4—4 × 1.6—2 mm, body wider than and as long as perigynium, apex acuminate to short-awned, awn less than 1 mm. Anthers 2.5 mm. Perigynia brown, sometimes with green margins, faces obscurely veined, 2.5—4.5 × 1.5—1.9 mm, base of body somewhat spongy, margins serrulate distally; beak 0.6—1.3 mm, apical teeth 0.2—0.3 mm. Stigmas straight, 0.07 mm wide. Achenes elliptic-circular, 1.9—2 × 1.5—1.6 mm.
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