Flora of North America species comparison

to 100 cm × 2 mm, scabrous.

to 125 cm.

sheath fronts spotted red-brown or pale brown, apex truncate or short-convex, membranous or hyaline, rugose;

ligule retuse or rounded, to 2 mm, free limb to 0.2 mm;

blades 120 cm × 5 mm, longer than flowering stem.

sheaths glaucous, fronts indistinctly veined, veins not persisting, apex thin, truncate or irregularly convex;

blades 120 cm × 7–10 mm, glabrous.

spicate, (3–)7–10 cm × 15 mm, with 10–15 branches, the proximal branches distinctly separate; the proximal internode to 25 mm;

bracts setaceous, those subtending at least the proximal lateral branches conspicuous.

with 5–7 spikes, 30 cm;

peduncle of lateral spikes to 6 cm;

proximal bracts equaling inflorescences, 3–6 mm wide;

lateral spikes divergent, 3–6 cm × 6–8 mm.

green to pale brown, veinless on both faces or 3-veined abaxially, body ovate or elliptic, 2–3.2 × 1.3–1.8 mm, base obtuse;

beak 0.8–1.2 mm, 1/3–1/2 length of perigynium.

strongly divergent, red-brown, angles veined, faces prominently 6–8-veined, sessile, widely elliptic or somewhat obovate, 3.5–4.5 × 2.8–3.2 mm, base rounded, apex ± truncate proximal to beak, densely papillose with low, oblong or, rarely, minute, rounded papillae, not markedly glaucous;

beak 0.3–0.5 mm, entire or minutely bidentate, teeth to 0.1 mm.

red-brown, ovate, 1.2–1.4 × 1 mm, glossy.

rhomboid, 2.5–3 × 2.5–3 mm, base conspicuously broadened.

pale brown, hyaline, awn to 3 mm.

scales shorter and narrower than perigynia, apex acute, awn to 3 mm.

= 52.