Flora of North America species comparison

14–37 cm.

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

basal sheaths dark reddish brown;

blades mostly basal, pale green, shorter than culms, thick, 1.7–4.5 mm wide.

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.

peduncles of proximal spikes short;

peduncles of terminal staminate spikes 1.5–3(–10) mm;

proximal bracts short-sheathing; pistillate spikes 1–3, emerging from cauline nodes, aggregated, ascending, ovoid to short-cylindric; staminate spikes 8–22 × 1.8–3.1 mm.

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.

ellipsoid to obovoid, 2.5–3 × 1.4–1.7 mm, base tapering, pubescent with straight white hairs;

beak 0.5 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.

obovoid, 1.9–2.5 × 1.3–1.6 mm.

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

pistillate scales dark reddish brown, ovate to obovate, apex obtuse to acute, minutely ciliate; staminate scales dark reddish to purplish brown, ovate to obovate, margins white, apex acute, scarious.

1.9–3.1 mm.

(1.8–)1.9–2.2 mm.

4, erect or convolute, thick, weakly papillose.

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.