Flora of North America species comparison

to 100 cm × 2 mm, scabrous.

5–40 cm, weakly scabrous distally;

bases not fibrous.

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.

blades green, equaling or exceeding culms, 0.7–1.5 mm wide, herbaceous, smooth to papillose abaxially, weakly scabrous adaxially.

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 both staminate and proximal spikes;

peduncles of staminate spikes 1.9–5.9 mm;

proximal nonbasal bracts leaflike, equaling or shorter than inflorescences.

proximal pistillate spikes 2–3 (basal spikes 0);

cauline spikes remote, nonoverlapping, proximal 2 usually separated by more than 7 mm, with 3–10 perigynia; staminate spikes 4–15 × 0.7–1.3 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.

pale green, veinless, ellipsoid, 2.2–2.6 × 0.8–1 mm, longer than wide;

beak 0.3–0.7 mm, straight, pale green, apical teeth 0.2–0.3 mm.

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

dark brown, obovoid to ellipsoid, acutely trigonous in cross section, 1.4–1.7 × 0.7–0.9 mm.

pale brown, hyaline, awn to 3 mm.

pistillate scales pale brown to pale reddish brown, ovate, 2–2.5 × 1–1.4 mm, shorter than to equaling perigynia, apex cuspidate to acuminate; staminate scales oblong to oblanceolate, 3.1–4.6 × 0.7–1.3 mm, apex long-acuminate to obtuse.

1.5–2.1 mm.

3.

= 52.