Flora of North America species comparison

erect, not stiff, 15–90 cm.

15–50 cm, pilose.

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 pilose;

ligules longer than wide;

blades 1.5–3 mm wide, pilose.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

lateral spikes approximate or proximal distant, 6–12 × 4–7 mm;

terminal spike staminate or, rarely, gynecandrous with not more than 1/4 flowers pistillate, 8–16 × 2–4 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, strongly 18–24-veined, ovate or obovate, 2.2–3.2 × 1.5–2.2 mm, glabrous;

beak 0.2–0.5(–1) mm.

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

2–2.5 × 1.5–1.9 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-circular, 2–3 × 1.6–2.5 mm, not more than 1.5 times as long as wide, shorter than perigynia, apex obtuse to acuminate.

scales ovate, 3.2–4.1 mm, apex acute or acuminate.

1.9–2.4 mm.

= 56.