Flora of North America species comparison

erect, not stiff, 15–90 cm.

acutely or obtusely angled, 30–115 cm, scabrous.

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 red-brown;

sheaths of proximal leaves glabrous, fronts lacking spots and veins, apex convex, prolonged;

blades 3–6 mm wide.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

proximal bract equal to inflorescence, 3–5 mm wide.

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;

proximal 3–5 spikes pistillate, 2.5–10 cm × 3–5 mm, base attenuate;

terminal 2–3 spikes staminate.

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, green, spots absent, 3–5-veined on each face, somewhat flattened, loosely enclosing achenes, ellipsoid, 1.7–3.2 × 1–2.1 mm, dull, apex rounded or obtuse, papillose;

beak 0.1–0.3 mm.

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

not constricted, dull.

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 pale or red-brown, equaling perigynia, apex acute, awnless.

= 56.

= 72.