Flora of North America species comparison

25–60(–85) cm;

vegetative culms with few leaves clustered at apex.

15–80 cm, 1.5–2 mm wide basally, 0.5 mm wide distally.

sheaths adaxially white-hyaline, summits U-shaped;

distal ligules 1.5–6 mm;

blades (2–)3–4(–5) per fertile culm, 7–22 cm × 2–4 mm.

sheaths tight, green, fronts white-hyaline;

ligules less than 2 mm, wider than long;

widest leaf blades 1.5–2.5 mm wide.

erect, usually dense, green, gold, or dark brown, 1.8–3 cm8–14 mm;

proximal internode 2–3(–5) mm; 2d internode 1–3 mm;

proximal bracts bristlelike, shorter than or equaling inflorescences.

with 5–10 spikes, 2–5 cm × 5–10 mm;

proximal internodes 1–2 times as long as proximal spikes;

proximal bracts 1–2 cm;

spikes with 5–10 erect perigynia.

6–14, distant, distinct, ovoid to broadly ovoid, 8–10 × 4.5–6.5 mm, base and apex acute to truncate.

ascending, white to gold or light brown, 0–5-veined abaxially, 0–4-veined adaxially, narrowly lanceolate to narrowly ovate, flat except over achene or, occasionally, plano-convex, 3.4–4.1(–4.7) × 0.9–1.3 mm, 0.15–0.35 mm thick, margin flat, including wing 0.1–0.2 mm wide, usually crinkled distally;

beak brown or red-brown at tip, flat, ± ciliate-serrulate, abaxial suture inconspicuous, distance from beak tip to achene (1.8–)2.1–3 mm.

pale green to pale brown, veinless or obscurely veined abaxially, 2.6–3.5 × 1.2–1.5 mm, margins serrulate distally;

beak 0.8–1.5 mm, apical teeth 0.3–0.5 mm.

± elliptic, 1.1–1.5 × 0.6–0.8 mm, 0.15–0.35 mm thick;

style usually persistent, sinuate.

elliptic-circular, 1.5–1.7 × 1.1–1.2 mm.

scales gold to dark brown, with whitish, green, or brown midstripe, lanceolate, 3–3.8 mm, shorter and narrower than perigynia, apex acuminate to short-awned.

scales brown with green midvein, ovate, 2.7–3.6 × 1.4–2.1 mm, body longer and wider than perigynium, apex awned.

not measured.

= 52, ca. 66, 70.