Flora of North America species comparison

erect, not stiff, 15–90 cm.

obtusely angled, 3–15 cm, glabrous.

sheaths pale brown abaxially, inner band thin, hyaline, sometimes slightly red tinged, concave at summit;

ligules slightly longer than wide;

blades pale green to gray-green flat, 10–20(–30) cm × (1.5–)2–4 mm, subequal to shorter than culms, not stiff.

basal sheaths brown;

sheaths of proximal leaves glabrous, fronts lacking spots and veins, apex U-shaped;

blades epistomic, strongly involute, 1–2 mm wide, adaxially papillose.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

4–8, gynecandrous, proximal ± remote, distal spikes approximate, sometimes flexuous, containing (5–)10–20(–30) perigynia suborbicular to oblong, 3–12 × 3–5 mm;

terminal spike staminate for less than 1/2 of length, often clavate due to more conspicuous staminate part.

erect;

staminate 1(–2);

pistillate 1–3;

proximal pistillate spike 0.5–1.4 cm × 2–4 mm, base cuneate.

appressed-ascending, gray-green, becoming yellowish brown, obscurely many-veined, elliptic-ovate, 1.8–3 × 1.2–1.7 mm, widest near middle, membranous;

beak abaxial suture inconspicuous, small marginal teeth.

ascending, pale brown, sometimes with purple-brown spots on apical 1/2, veinless, somewhat inflated, loosely enclosing achenes, narrowly ellipsoid to narrowly ovoid, 2.7–3.3(–3.6) × 1–1.8 mm, leathery, dull, base with stipe to 0.3 mm, apex acute, short-papillose;

beak widely conic, 0.1–0.3 × 0.3–0.5 mm.

pale brown, oblong-obovate, 1.25–1.5 × 1–1.25 mm, dull to slightly glossy.

entire to slightly constricted on margins, apex truncate to retuse, dull;

style base straight, rarely bent.

scales hyaline with green, 3-veined center when young, usually brownish tinged in age, broadly ovate, subequal to, not concealing perigynia, apex obtuse to acutish.

scales bright brown to dark purple-brown, 2–3.6 × 0.9–1.5 mm, wider than perigynia, midvein reaching apex, 1/5–1/2 the width of scale, apex acute, rarely acuminate, mucronate to short-aristate.

bract longer than inflorescence, 1–3 mm wide, spathelike at base and enclosing spike.

= 56.

= 78, 80–83.