Flora of North America species comparison

erect, not stiff, 15–90 cm.

obtusely trigonous in cross section, 45–100(–160) cm, smooth.

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.

ligules 3–12 mm, mostly longer than wide;

blades yellowish or light green, widest leaves 1.8–6 mm wide, smooth or sometimes papillose, especially distally.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

(3–)5–30(–45) cm;

proximal (1–)2–3 spikes pistillate, erect or the proximal spreading, aggregated or the proximal sometimes remote, ovoid to short-cylindric.

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.

spreading or the proximal somewhat reflexed, yellowish green, 22–34-veined, inflated, ovate to narrowly ovate, 6.4–10.7 × 2–3.5 mm, 2.6–3.9 times as long as wide, apex contracted;

beak 1.3–3 mm.

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

2.8–3.6 × 1.6–2.2 mm.

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 ovate, 1/3–2/3 as long as perigynia, apex acute to acuminate.

2.3–5.1 mm.

= 56.