Flora of North America species comparison

25–60(–85) cm;

vegetative culms with few leaves clustered at apex.

± erect, weak, 10–50 cm.

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.

sheaths pale brown abaxially, inner band hyaline, concave at summit;

ligules as long as wide;

blades pale green, flat or channeled, 5–15 cm × 0.5–2 mm.

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.

erect, ovoid or suborbicular, 0.6–1.2 cm × 4–9 mm;

proximal bracts scalelike, sometimes bristlelike, shorter than inflorescences.

6–14, distant, distinct, ovoid to broadly ovoid, 8–10 × 4.5–6.5 mm, base and apex acute to truncate.

2–4, gynecandrous, closely approximate, containing 3–15 perigynia, short-oblong, 4–9 × 3–6 mm.

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.

appressed-ascending, gray-green, obscurely few-veined, obovate-elliptic, 3–3.5 × 1.5–1.75 mm, subcoriaceous;

beak absent or nearly so.

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

style usually persistent, sinuate.

pale brown, oblong-elliptic, 1.5–2 × 1.25(–1.5) mm, glossy.

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 white-hyaline with green, 3-veined center, ovate, subequal to perigynia, apex obtuse.

= 52, ca. 66, 70.

= 58.