Flora of North America species comparison

to 100 cm × 2 mm, scabrous.

15–45 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 adaxially white-hyaline, summits usually U-shaped;

distal ligules 0.8–1.5 mm;

blades 3–5 per fertile culm, occasionally folded, if not folded, margins revolute, 5–10 cm × 1.5–2.5(–3) mm, thick, tough.

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.

dense to ± open, whitish, gold, or brown, (1.5–)2–3(–3.7) cm × 6–12 mm;

proximal internode 4–11 mm; 2d internode 2.5–7 mm;

proximal bracts scalelike or bristlelike, shorter than inflorescences.

4–6, distant, distinct, lanceloid to ovoid, 10–15 × 4–6 mm, base tapered to attenuate, apex rounded to acute.

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.

appressed or appressed-ascending, green, gold, or coppery, conspicuously 7–14-veined abaxially, conspicuously 3–8-veined adaxially, lanceolate or ovate to oblanceolate or obovate, plano-convex, (3.7–)4.5–6 × 1.5–2.6 mm, 0.5–0.7(–0.9) mm thick, margin flat, including wing 0.2–0.4(–0.5) mm wide;

beak brown to gold or reddish, often white-hyaline at tip, ± cylindric, ± ciliate-serrulate for distal 0.2–0.7 mm, abaxial suture with white margin, or sometimes inconspicuous, distance from beak tip to achene (0.6–)1–2 mm.

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

lanceolate to ovate or obovate, 1.9–2.4 × 1.2–1.6 mm, 0.5–0.7 mm thick.

pale brown, hyaline, awn to 3 mm.

scales red-brown, with straw colored to tan midstripe, usually ovate, to 4–5 mm, equaling, covering at least perigynium bodies, margin white, 0.2–0.6 mm wide, apex obtuse to short-awned.

= 52.