Flora of North America species comparison

20–90 cm, 1.7–2.2 mm wide basally, 0.7–1.1 mm wide distally.

to 30(–60) cm.

sheaths tight, green, sometimes white spotted, fronts hyaline, sometimes transversely rugose, mouth yellowish and thickened;

ligules to 3 mm, usually wider than long;

widest leaf blades 2–4 mm wide, papillose adaxially.

blades 2–4 mm wide.

with 3–10 spikes, 1.5–4 cm × 8–12 mm;

proximal internodes equaling or shorter than proximal spikes;

proximal bracts less than 2 cm;

spikes with 8–20 ascending or spreading perigynia.

2–6(–8) cm;

proximal internode 10–40 mm;

peduncle of proximal spikes exserted to 4 cm;

proximal bracts with blade 5–22 mm, sheath cylindric, 5–28 mm, mouth usually tinged with dark purple, 0.9–1.4 mm wide Spikes 2–5;

lateral spikes usually pistillate, inclined or pendent, 8–19 × 4–7 mm;

terminal spike staminate or gynecandrous, erect or inclined, 6–15 × 2–5 mm.

pale green to yellow-brown, 9–15-veined abaxially, margins serrulate distally;

beak 0.2–1.2mm, apical teeth 0.2–0.5 mm.

ascending, pale brown proximally, black distally, indistinctly veined, ovate, 3–4.8(–5.5) × 0.9–1.6 mm, papillose at least on margins;

beak distinct, 0.3–0.5 mm.

suborbiculate, 1.9–2.2 × 1.9–2.1 mm.

ellipsoid, 1.4–1.6 × 0.7–0.9 mm.

scales hyaline with green, 3-veined center, ovate to ovate-circular, body narrower than and 2/3 to length of perigynium, apex acute or with awn 0.5–1.5(–2) mm.

scales black with pale midvein, ovate or oblong-ovate, 3–4.8 × 0.9–1.6 mm, margins narrow and scarious, apex acute to obtuse, papillose at least on midvein.

1.5–2.3 mm.

1.9–2.6 mm.

scales black with pale midvein, oblong-obovate, 3–5 × 1.2–1.8 mm, margins scarious, apex acute or obtuse.