Flora of North America species comparison

to 100 cm × 2 mm, scabrous.

15–60 cm, distally finely scabrous.

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.

3–4 mm wide.

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.

proximal bracts shorter than or exceeding inflorescences;

spikes overlapping, distinct, contiguous, short-oblong or cylindric, 5–15 × 3–4.5 mm;

lateral 2–3 spikes pistillate;

proximal spikes separate, erect, short-pendunculate;

distal lateral contiguous or separate, not forming dense terminal cluster, of similar length;

terminal spike gynecandrous.

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.

ascending, green becoming dark brown or purple-black, veinless, elliptic, 2–2.5 × 1.25–1.5 mm, frequently serrulate, apex abruptly or gradually beaked, smooth or distal margins sparsely papillose;

beak 0.2–0.3 mm, shallowly bidentate, serrulate or smooth.

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

nearly filling body of perigynia.

pale brown, hyaline, awn to 3 mm.

scales dark brown to black, margins hyaline, ovate, shorter than and as broad as perigynia, midvein same color as body, inconspicuous.

= 52.