Flora of North America species comparison

to 100 cm × 2 mm, scabrous.

1.4–25 cm.

sheath fronts spotted red-brown or pale brown, apex truncate or short-convex, membranous or hyaline, rugose;

ligule retuse or rounded, to 2 mm, free limb to 0.2 mm;

blades 120 cm × 5 mm, longer than flowering stem.

basal sheaths pale to medium brown;

blades dull green to yellowish green, longer than stems, 1.3–5.4 mm wide, coriaceous, margins green, crenulate to scabrous.

spicate, (3–)7–10 cm × 15 mm, with 10–15 branches, the proximal branches distinctly separate; the proximal internode to 25 mm;

bracts setaceous, those subtending at least the proximal lateral branches conspicuous.

green to pale brown, veinless on both faces or 3-veined abaxially, body ovate or elliptic, 2–3.2 × 1.3–1.8 mm, base obtuse;

beak 0.8–1.2 mm, 1/3–1/2 length of perigynium.

dull green to dark olive green, ellipsoid to ovoid, 4.8–6.6 × 1.9–3.2 mm, loosely enveloping achenes, apex gradually tapering;

beak 1.9–2.9 mm, smooth.

red-brown, ovate, 1.2–1.4 × 1 mm, glossy.

2.5–3.2 × 1.6–2.3 mm.

pale brown, hyaline, awn to 3 mm.

spikes 0–3, basal, on erect peduncles.

spikes with staminate portion 2–3-flowered, 2-–3.6 × 0.4–1 mm; pistillate portion 2–7-flowered.

scales green, margins (2–)2.5–6.5 mm wide, essentially concealing perigynia, apex acute, distal scales lanceolate to ovate, apex acute.

scales green to pale brown, ovate to oblong, 1.9–3.5 × 0.8–1.5 mm, margins enfolding scales above, white, often with reddish brown tinge, apex obtuse.

0.9–1.3 mm.

clavate, erect, shorth, thick, minutely papillose.

= 52.

= 66.