Flora of North America species comparison

erect, not stiff, 15–90 cm.

10–40 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.

3–4 mm wide.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

proximal bracts shorter than, sometimes equaling or, occasionally, exceeding inflorescences;

spikes overlapping, contiguous, forming a dense terminal cluster or, sometimes, proximal spikes separate and distinct, sessile, short-oblong, 7–10 × 5–7 mm;

lateral 2–3 spikes pistillate;

terminal spike gynecandrous.

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, glossy reddish brown, often with yellowish or greenish brown margins, veinless, obovate or circular, 3.5–4.5 × 2.5–3 mm, apex abruptly beaked, smooth;

beak 0.5–0.8 mm, deeply bidentate, smooth.

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

filling proximal 1/2 or less of perigynia.

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 dark brown or black to margins, lanceolate, shorter or longer than, and narrower than, perigynia, midvein same color as body, inconspicuous, apex usually acute, occasionally short-mucronate.

= 56.