Flora of North America species comparison

25–60(–85) cm;

vegetative culms with few leaves clustered at apex.

20–90 cm, pilose.

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.

ligules shorter than wide;

blades 1.5–4 mm wide, pilose on both surfaces.

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.

lateral spikes 8–18 × 3–5.5 mm, usually crowded;

terminal spike gynecandrous, at least 1/2 of flowers pistillate, 10–20(–25) mm.

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.

ascending, weakly 9–18-veined, obovate-circular, ± trigonous in cross section, 2–3 × 1.1–1.6 mm, not papillose, glabrous;

beak absent.

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

style usually persistent, sinuate.

1.6–2.1(–2.6) × 0.8–1.3 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 ovate, 1.8–2.5 × 0.7–1.3 mm, apex obtuse, sometimes mucronate, shorter than perigynia.

scales ovate to lanceolate, 2.1–5.2 mm, apex acuminate.

1.3–2.2 mm.

= 52, ca. 66, 70.

= 52.