Flora of North America species comparison

to 75 cm × 2 mm, scabrous.

15–70 cm.

sheath fronts indistinctly spotted pale brown or red, apex convex, membranous, rugose;

ligule rounded, to 3 mm, free limb to 0.2 mm;

blades 60 cm × 5 mm, shorter than flowering stem.

sheaths adaxially white-hyaline, summits U-shaped, occasionally shortly prolonged beyond collar;

distal ligules 0.8–1 mm;

blades 3–5 per fertile culm, often folded, 3.5–20 cm × 1–3 mm.

spicate, 4–7 cm × 15 mm, with 10–15 branches, proximal usually distinct;

proximal internodes to 1.5 cm;

bracts setaceous, proximal 1–3 conspicuous, distal bracts scalelike.

stiffly erect, open or spikes loosely aggregate, if open, sometimes arching, whitish to pale brown, 1.5–5 cm × 5–10 mm;

proximal internode 5–10 mm; 2d internode 4–8 mm;

proximal bracts scalelike to bristlelike, shorter than inflorescences.

3–5, distant, distinct, ovoid-ellipsoid, 7–14 × 3–8 mm, base tapered to attenuate, apex acute.

golden brown, 3-veined abaxially, body broadly elliptic to ovate, 2.2–3 × 1.5–2.2 mm, base rounded;

beak 0.5–1.2 mm, 1/3 length of body.

essentially erect, pale yellowish brown, often with green beak, 8–10-veined abaxially, veinless or indistinctly 8–10-veined adaxially, ovate to broadly ovate, plano-convex or thickly concavo-convex, 3.8–4.8 × 1.4–2.2 mm, 0.5–0.6 mm thick, margin flat, including wing 0.2–0.4 mm wide, ciliate-serrulate at least on distal body;

beak white-hyaline at tip, flat, ± ciliate-serrulate to the bidentate apex, abaxial suture inconspicuous or white-hyaline, distance from beak tip to achene 1.4–2.2 mm.

red-brown, circular, 1.2–1.5 × 1–1.2 mm, glossy.

ovate-oblong, 1.7–2.1 × 1.2–1.4 mm, 0.5–0.6 mm thick.

hyaline, red-brown with narrow colorless margins, awn to 1.5 mm.

scales whitish to yellowish, with 1-veined, green to gold midstripe, or white almost throughout at maturity, ovate, 4.4–6 mm, longer and as wide as and concealing perigynia, margin hyaline, 0.3–0.7 mm wide, apex acute.

= 68.