Flora of North America species comparison

erect, not stiff, 15–90 cm.

densely tufted, erect, ascending, or, rarely, decumbent, 21–39 cm × 0.7–1 mm.

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 reddish purple, lustrous;

sheaths 5–40 mm;

blades lateral, erect or ascending, green, midrib well developed, especially abaxially, 2 lateral veins developed adaxially, flat to slightly corrugated, 11–29 cm × 0.7–5.2 mm, dead leaves lateral to new clumps, overwintered leaves smooth abaxially.

0.45–3.75 cm × 1.9–4.8 mm, bract blade of distal lateral spikes linear, narrower than spikes, not concealing them (viewed from abaxial surface), widest bract blade of distalmost lateral spike 0.5–3.4 mm wide.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

peduncles of lateral spikes 3–22 mm; of terminal spike (0.9–)1.2–3.2(–5.3) cm.

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.

(3–)4(–5) per culm;

lateral spikes 8–35 × 2.8–4 mm;

terminal spike linear, 8–21 × 0.9–2.7 mm, usually exceeded by bract blade of distalmost lateral spike, sometimes sharing sheath with distalmost pistillate spike.

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.

2–7 per spike, conspicuously (22–)25–32-veined, oblong-elliptic, 3.4–4.2 × 1.7–2 mm;

beak slightly curved, 0.8–1.3 mm.

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

ovoid, 1.8–2.2 × 1.4–1.8 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 3.6–3.8 × 1.4–1.6 mm, apex acute to aristate or, occasionally, awned, awn to 0.6 mm, serrulate apically.

scales 3.8–4.8 × 0.8–1.2 mm, margins hyaline (rarely slightly purplish tinged).

2–2.2 mm.

= 56.

= 28.