Flora of North America species comparison

erect, not stiff, 15–90 cm.

10–75 cm, 1.3–1.8 mm wide basally, 0.5–0.8 mm wide distally.

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 tight, green, fronts hyaline;

ligules less than 2 mm, wider than long;

widest leaf blades 1.4–3 mm wide.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

with 3–9 spikes, 1–4 cm × 5–9 mm;

proximal internodes 1–3 times as long as proximal spikes;

proximal bracts to 6 cm;

spikes with 3–10 spreading perigynia.

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.

green to pale yellow, faces weakly veined, 2.5–3.2 × 1.2–1.8 mm, base of body spongy, thickened and longitudinally striate adaxially, spongy region 0.8–1.5 mm, margins entire, serrulate distally;

beak 0.7–1 mm, apical teeth 0.1–0.3 mm.

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

ovate-circular, 1.3–1.6 × 1.3–1.5 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 hyaline with green midvein, ovate, 2–3 × 1.4–1.6 mm, 3/4 length to equaling perigynia, apex acute to acuminate.

1.5–2.3 mm.

straight or slightly twisted, 0.05 mm wide.

= 56.

= 40.