Flora of North America species comparison

erect, not stiff, 15–90 cm.

densely tufted, lateral, ascending or lax to decumbent, distinctly winged, 10–62 cm × 2–2.4 mm;

basal sheath light brown to brown, the proximal frequently wine-red or purple, small, triangular.

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 2–15 mm;

blades ascending, midrib well developed, 2 lateral veins conspicuous, slightly more so than other veins, flat, thin, 10–35 cm × 10–38 mm, widest leaf 13–38(–62) mm wide, blades of overwintering leaves smooth.

1.4–2.6 cm × 3.9–2.2(–3.2) mm;

bract blades of distal lateral spikes lanceolate or narrowly lanceolate, wider than spikes, concealing them, widest bract blade of distalmost lateral spike (2.9–)3.2–8.3 mm wide.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

peduncles of proximal spikes to 5.8 cm; of terminal spike absent.

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.

4(–5) per culm;

lateral spikes 6–36 × 3–4.2 mm;

terminal spike erect, linear, 4–18 × 1.2–1.6 mm, often hidden by distal 2 pistillate spikes and distal bract blade, frequently exceeded by distal 2 pistillate bracts.

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.

3–20 per spike, strongly to loosely overlapping, erect or ascending, obovate, 3–4.2 × 1.8–2.1 mm;

beak abruptly bent, 0.3–0.6 mm.

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

ovoid, 2.5–3.8 × 1.6–1.8 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 oblong, 2.8–3.2 × 1.4–2 mm, apex obtuse or truncate, awnless (sometimes mucronate).

scales oblong ovate, 2.8–3.2 × 1.4–2 mm, margins hyaline, apex obtuse.

2–2.2 mm.

= 56.

= 44.