Flora of North America species comparison

25–60(–85) cm;

vegetative culms with few leaves clustered at apex.

20–50 cm, smooth.

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.

2.5–5 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.

proximal bracts shorter than or exceeding inflorescences;

spikes contiguous, overlapping, distinct or the proximal separate and pendent, elongate, 10–25 × 6–10 mm;

proximal long-pendunculate;

lateral 3–6 spikes pistillate or, rarely, gynecandrous;

terminal spike gynecandrous.

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, purple-brown with green or pale yellow margins, veinless, broadly ovate, 3–4 × 2.25–3.5 mm, apex abruptly beaked, distally papillose;

beak 0.3–0.5 mm, entire or shallowly bidentate, smooth.

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 chestnut or brownish black with hyaline margins, lanceolate, equaling or longer than and narrower than perigynia, midvein same color as body, inconspicuous, slightly raised, prominent.

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

style usually persistent, sinuate.

filling proximal 1/2 or less of perigynium.

= 52, ca. 66, 70.