Flora of North America species comparison

14–89(–101) cm × 0.3–1.1 mm wide, smooth or papillose.

erect or ascending, 7–27 cm × 0.4–0.7 mm;

vegetative shoots taller than culms, (1.4–)1.7–3.7(–4.9) times as tall as tallest flowering culm;

blades of vegetative shoots 1–3.5 times wider than bract blades.

ligule on distal leaf 0.9–2.2 mm, as long as wide;

blades 0.6–4.2 mm wide, widest blade 2.4–4.2 mm wide.

basal sheaths white to light brown;

nonbasal sheaths 2.1–10.6 mm;

blades erect, drooping or recurved, dark green, 0.4–52 cm × 1.6–6.1 mm, usually exceeding culms.

12–56 mm;

proximal internode 6–34 mm;

proximal bracts 6–49 mm, awn 7–46 mm;

spikes (2–)3–5, longest ones 2–5, usually gynecandrous;

proximal spikes with 1–2 staminate and (5–)7–12 pistillate flowers, 5.2–11(–13) × (2.1–)3.7–6.9 mm;

terminal spikes usually with 1–3(–5) staminate and (7–)9–13(–16) pistillate flowers, 6.8–13 × 3.8–8.1 mm.

spikes (3–)4 per culm, scattered;

peduncles of proximal pistillate spikes drooping, to 9.1 cm;

bracts dark green, 10–28 cm × 1.8–5.9 mm, well developed, blade of distal lateral spike (12–)17–51 times as long as wide.

erect to ascending, green to pale brown, 0–5-veined abaxially, usually veinless adaxially, narrowly ovate, 4–4.9(–5.2) × 1.3–1.5(–1.6) mm, 2.9–3.8 times as long as wide, apex gradually tapering;

beak 1.4–2.1 mm, 0.32–0.4 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.2 mm, 0–0.05 times as long as perigynia.

4–8(–9) per spike, distichously overlapping, finely veined, obovoid, 2.9–3.8 × 1.5–2.1 mm;

beak tapering.

tapering from swelling just beyond attachment to achene, bent, ascending through entire orifice.

1.8–2.2 × 1.2–1.5 mm wide, 1.3–1.8 times as long as wide.

ellipsoid, 2.2–2.9 × 1.4–1.8 mm, sides flat at maturity, filling perigynia.

scales with colorless or stramineous margins, 3–4.5 × 1.6–2.2 mm, body 2.8–4.2 mm, apex acuminate to short-awned, awn to 0.6 mm.

spikes: the proximal usually, usually basal, the distal sessile to very short pedunculate, often hidden in foliage, 5.3–17 × 2.8–4.1 mm.; pistillate scales 1.3–2.2 × 1.4–2.1 mm, midribs green, margins hyaline, apex acute, proximal scales of lateral spikes subtending perigynia.

scales with colorless or stramineous margins, 3–5.3 × 1.2–1.6 mm, apex acute to acuminate or occasionally short-awned to 0.3 mm.

spike sessile or nearly so, (8.3–)9.6–16(–21.1) × 0.6–1.3 mm, often hidden by distal bract and/or pistillate spikes.; staminate scales (2.6–)2.8–3.5(–3.8) × 1.1–1.7 mm, midribs green, margins hyaline, apex obtuse.

(1.8–)1.9–2.2 mm.

1.2–1.8 mm.

1.9–2 mm.