Flora of North America species comparison

(24–)35–85 cm.

15–50(–70) cm, distally scabrous.

sheath adaxially white-hyaline, summits U-shaped to rounded;

distal ligules 2–3 mm;

blades (1–)2–4(–5) per fertile culm, flat ± to tip, 7–22 cm × (1.5–)2–3.5(–4) mm.

2–4 mm wide.

stiffly erect, usually open, brown, 1.5–4 cm × 10–15 mm;

proximal internode (2.5–)4–10 mm; 2d internode (2.5–)3–6 mm;

proximal bracts scalelike or bristlelike, shorter than inflorescences.

proximal bracts shorter than or exceeding inflorescence;

lateral 1–2(–4) spikes pistillate;

proximal spikes distant, erect, and short-pedunculate;

distal lateral and/or terminal spikes overlapping, sessile, contiguous, and forming dense terminal cluster, globose or oblong, 5–12 × 3–6 mm;

terminal spike gynecandrous.

5–9, usually loosely aggregated, ovoid to broadly ovoid, 9–14 × 6–8 mm, base attenuate, apex rounded to tapered.

ascending to ascending-spreading, gold to light brown, conspicuously 3–9-veined abaxially, conspicuously 2–5-veined adaxially, lanceolate to ovate, usually flat except over achene, 3.4–4.7(–5.2) × 1.3–2.1 mm, 0.4–0.5 mm thick, margin flat, including wing 0.2–0.6 mm wide;

beak red-brown or gold at tip, usually cylindric, unwinged, ± entire for 0.3–0.5 mm, sometimes flat, ciliate-serrulate to tip, abaxial suture often with conspicuous white margin, distance from beak tip to achene (1.2–)1.5–2 mm.

erect or spreading, proximal ones sometimes reflexed, pale green becoming golden brown, veinless or few-veined from base to summit, ovate, 2.5–3.5 mm, distal margins occasionally serrulate, apex gradually or abruptly beaked, smooth or papillose;

beak 0.3–0.4 mm, bidentate, smooth or serrulate.

elliptic to broadly ovate, 1.1–1.8 × 0.9–1.2 mm, 0.4–0.5 mm thick.

nearly filling body of perigynia.

scales reddish gold to brown or greenish, often white-hyaline at tip or base, with pale or green midstripe, narrowly to broadly ovate, 3.4–5 mm, length and width less or greater than perigynia, margin not white-hyaline, apex acute to acuminate.

scales dark brown to black to margins or distally hyaline, ovate or lanceolate, shorter than (often 1/2 the length), as broad as perigynia, midvein same color as body, inconspicuous.

= 62, 64, 66, 68.