Flora of North America species comparison

20–90 cm, 1.5–3 mm wide basally, 0.9–1.1 mm wide distally.

15–60 cm, usually scabrous distally.

sheaths tight, green, fronts hyaline, yellowish and thickened at mouth;

ligules to 3 mm, as long as wide;

widest leaf blades 2.5–4.5 mm wide, sometimes papillose adaxially.

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 (3–)5–10 spikes, 1.5–3.5 cm × 8–15 mm;

proximal internodes equaling or shorter than proximal spikes;

proximal bracts 1–5 cm;

spikes with 8–20 ascending or 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, pale yellow, or pale brown, 9–15-veined abaxially, 3.5–5 × 2.2–3 mm, margins serrulate distally;

beak 0.8–1.2 mm, apical teeth 0.4–0.6 mm.

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

beak minute, bent.

suborbiculate, 1.9–2.5 × 1.5–2 mm.

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

scales hyaline or brown with green, 3-veined center, ovate, (2.4–)3–4.3 × (1–)1.6–3 mm, body slightly shorter to longer than perigynium and as wide, apex awned to 1.5–3.5(–4) mm.

scales purple tinged or brown, apex awned or obtuse.

2.2–2.5 mm.