Flora of North America species comparison

erect, not stiff, 15–90 cm.

to 120 cm.

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.

sheaths glaucous, fronts strongly veined, veins persisting as a pinnate network, apex thickened, truncate or distal sheaths concave;

blades 40–75 cm × 4–8 mm, strongly scabrous on margins and adaxial surface.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

with 5–7 spikes, 20 cm;

peduncle of lateral spikes to 5 cm;

proximal bracts equaling inflorescences, 2–4 mm wide;

lateral spikes with staminate spikelets at apex, pendent, 3–6 cm × 6–9 mm.

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.

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, red-brown, angles veined, faces veinless or indistinctly 3–4-veined, sessile, elliptic, 3.2–5 × 1.8–2.6 mm, base rounded, apex obtuse to tapered, densely papillose with minute translucent papillae giving grayish color, glaucous;

beak 0.2–0.5 mm, often minutely bidentate, slightly thickened, teeth to 0.1 mm.

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

ellipsoid, 2.5–3 × 1.5–2 mm, base not conspicuously broadened.

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 shorter and narrower than perigynia, apex retuse, awn to 3.5 mm.

= 56.