Flora of North America species comparison

21–47 cm, smooth to weakly scabrous distally;

bases not fibrous.

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

blades pale green, shorter than culms, 1–3.3 mm wide, herbaceous, papillose abaxially, scabrous 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 staminate spikes 0.4–2.2 mm;

proximal cauline bracts leaflike usually shorter than 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 2–3 (basal spikes 0);

cauline spikes with proximal 2 spikes overlapping, se!parated by less than 7 mm, with 3–10 perigynia; staminate spikes 5.3–8.6 × 0.8–1.7 mm.

light green, veinless, ellipsoid, 3.2–4.2 × 1.1–1.3 mm, longer than wide;

beak straight, pale green, 0.7–1 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, obovoid to ellipsoid, obtusely trigonous in cross section, 1.9–2.4 × 1–1.3 mm.

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

pistillate scales reddish brown to pale brown, with broad white margins, ovate, 2.2–3.2 × 1.2–1.8 mm, 1/2 to 2/3 length of perigynia, apex acute to acuminate,; staminate scales elliptic, 2.4–3.2 × 0.9–1.8 mm, apex acute.

1.4–1.5 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.