Flora of North America species comparison

18–50 cm.

15–50 cm.

sheath adaxially white-hyaline, summits U-shaped to rounded, occasionally prolonged to 4 mm beyond collar;

distal ligules 0.5–1.5(–2) mm;

blades 3–4(–6) per fertile culm, 11–26 cm × 2.8–4 mm.

basal;

proximal leaves with blades 3–6 mm wide.

dense, dark brown, 1.5–3 cm × 14–20 mm;

proximal internode 1.5–3 mm; 2d internode 1–3.5 mm;

proximal bracts scalelike, usually bristlelike, shorter than inflorescences.

spikes separate, elongate, 5–25 × 4–6 mm;

proximal spike often pendent, long-pedunculate;

lateral spikes 2–4;

distal spikes erect, short-pedunculate.

(4–)6–12, aggregated, individually indistinct, ovoid, 9–15 × 4.5–6.5 mm, base and apex acute to rounded.

appressed to ascending, green, gold, or brown, conspicuously usually 7–9-veined abaxially, conspicuously 0–5-veined adaxially, veins shorter than achene, lanceolate to ovate, plano-convex, to 5.3–7.1 × 1.1–1.5 mm, 0.4–0.5 mm thick, margin flat, including wing 0.15–0.3 mm wide, ciliate-serrulate at least on distal body;

beak dark brown, sometimes gold-hyaline at tip, cylindric, unwinged, ± entire for 0.9–1.5 mm, dorsal suture inconspicuous or with conspicuous white margin, distance from beak tip to achene 2.9–4 mm.

proximally pale yellow, distally purple-black, veined, broadly ovate or obovate to circular, 3.5–4 × 1.5–1.75 mm, smooth;

beak 0.3–0.5 mm, smooth.

ovate to obovate, 1.5–1.9 × 0.8–1.1 mm, 0.4–0.5 mm thick.

scales dark brown, red-brown, or red-gold, sometimes with green to gold midstripe, ovate, 3.6–4.7 mm, shorter than and narrower or as wide as perigynia, margin gold-hyaline, to 0.3 mm wide, apex acuminate or acute.

scales light brown or reddish black, margins occasionally hyaline, midvein not or, occasionally, prominent, same color as body, inconspicuous or lighter colored, and conspicuous, lanceolate, apex acute or short-mucronate, shorter or longer than and narrower than perigynia.

= 84.