Flora of North America species comparison

ascending, 7–30(–40) cm, weakly to strongly scabrous distally;

bases (remnants of old leaves) slightly fibrous.

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

blades pale to dark green, usually equaling or exceeding stems, occasionally shorter, 0.8–2.5(–4) mm wide, herbaceous, glabrous abaxially, strongly scabrous to papillose adaxially.

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.

with both staminate and pistillate spikes;

peduncles of basal pistillate spikes erect, elongate, slender;

peduncles of staminate spikes 1.1–10 mm;

proximal nonbasal bracts leaflike, exceeding inflorescences.

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.

proximal pistillate spikes 2–4 (basal spikes 1–2);

cauline spikes overlapping or somewhat separated, with 3–10(–15) perigynia; staminate spikes (4.8–)6–12.8 × (0.7–) 0.9–1.3(–2.5) mm.

green to pale brown, veinless, ellipsoid to obovoid, 3.1–4.5 × 1.4–1.7 mm;

beak straight or slightly bent, pale green, occasionally with reddish brown tinge, 0.9–1.7 mm, ciliate-serrulate, apical teeth 0.2–0.4 mm.

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.

brown, globose to obovoid or ellipsoid, obtusely trigonous in cross section, 1.9–2.4 × 1.3–1.7 mm.

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

pistillate scales pale to dark reddish brown, with narrow white margins, ovate, 2.9–5.7 × 1.4–2.3 mm, shorter than perigynia, apex acute or acuminate to long-acuminate; staminate scales lanceolate, 3.2–5.8 × 1.2–1.8 mm, apex acuminate.

1.2–2 mm.

(1.8–)1.9–2.2 mm.

3.

1.9–2 mm.

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.

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.

= 36.