Flora of North America species comparison

(20–)30–100 cm, 2.5–8 mm wide basally, 0.7–1.6 mm wide distally.

to 100 cm × 2 mm, scabrous.

sheaths usually loose, proximally green-and-white-striped, not white spotted, with conspicuous transverse veins on back, fronts hyaline, sometimes transversely rugose and red dotted, thin, white or hyaline and fragile at mouth;

ligules 2–7 mm, shorter to longer than wide;

widest leaf blades (3–)4–8 mm wide.

sheath fronts spotted red-brown or pale brown, apex short-convex, membranous or slightly thickened, rugose;

ligule retuse, to 0.5 mm, free limb to 0.1 mm;

blades 70 cm × 5 mm, tip not reaching inflorescence.

with 5–15 spikes, 1–5 cm × 8–15 mm, occasionally compound, then somewhat larger;

proximal bracts to 3 cm;

spikes with 5–15 ascending to spreading perigynia;

proximal internodes shorter than to 1.5 times as long as proximal spikes.

spicate, 2.5–6 × 1.5 cm, with 10–15 branches, proximal scarcely separate; the proximal internode to 10 mm;

proximal bracts setaceous, not conspicuous, distal bracts scalelike.

pale green to pale brown, veinless or 3–7(–12)-veined abaxially, rarely veined adaxially, 3.5–5.5 × 2–3 mm, body somewhat spongy, base thickened, margins serrulate distally;

beak 0.6–1.6 mm, apical teeth 0.3–1 mm.

yellow-brown, red dotted, 3–5-veined abaxially, body broadly ovate, 2.5–5 × 2.5–3 mm, base rounded;

beak 0.8–1.2 mm.

circular to elliptic- circular, 1.8–2.1 × 1.6–2 mm.

red-brown, elliptic, 1.4–1.6 × 1.2 mm, dull.

scales hyaline or brown with green, 1–3-veined center, ovate, 2.6–4.4 × 1.3–2.4 mm, body shorter to slightly longer than perigynium, apex acuminate to short-awned.

1.5–3 mm.

hyaline, brown, awn to 2 mm, usually shorter than scale body.