Flora of North America species comparison

(20–)30–100 cm, 1.5–3.5 mm wide basally, 0.7–1.2 mm wide distally.

15–60 cm, usually scabrous distally.

sheaths usually loose, proximal green-and-white-striped and green-and-white-mottled, with conspicous transverse veins on back, fronts white to hyaline, sometimes red dotted and transversely rugose, yellow or brown and thickened at mouth;

ligules 1–4.5 mm, shorter than to as long as wide;

widest leaf blades 3.5–5 mm wide.

proximal sheaths with blades, brownish, 1.5–5 mm diam.;

ligules 0.4–3.6 mm, 0.4–1.2 times wider than long;

blades gray-green, flat, 7–15 cm × 2–5(–7) mm, folded near bases, margins often revolute, herbaceous.

with 5–10 spikes, (1.5–)2–5 cm × 8–13 mm;

proximal internodes shorter than to as long as proximal spikes;

proximal bracts to 3 cm;

spikes with 5–15 ascending to spreading perigynia.

4–25 cm, 1–1.6 times as long as proximal bracts;

proximal bract 2.5–20 cm, sheath 0.5–4 cm, blade 2–16 cm; pistillate spikes ovoid to cylindric, 6–37 × 3.5–8 mm;

lateral spikes erect or ascending on stiff peduncles.

pale green to pale brown, veinless or weakly 2–5-veined abaxially, 3.4–4.6 × 1.9–2.8 mm, body somewhat spongy, thickened at base, margins serrulate distally;

beak 0.7–1.4 mm, apical teeth 0.3–1 mm.

ascending to spreading, densely arranged, yellow-green to brown, 2.3–5 × 1.25–2.5 mm, minutely papillose;

beak minute, bent.

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

light to dark brown, 2.7–4 × 1.7–2.2(–2.5) mm.

scales hyaline or pale brown with green, 1–3-veined center, ovate, 2.2–3.5 × 1.2–1.8 mm, body 2/3 as long to almost length of perigynia, apex acuminate to short-awned.

scales purple tinged or brown, apex awned or obtuse.

1.5–2.5 mm.