Flora of North America species comparison

straight or arcuate, 2–85 cm.

trigonous in cross section, 15–105 cm, scabrous-angled distally.

of flowering stems shorter than to exceeding culms, to 20 cm × 0.8–5.4 mm;

ligules on distal cauline leaves usually obsolete (except in 414.b Carex viridula subsp. brachyrrhyncha).

basal sheaths reddish brown to reddish purple, thickened, not spongy;

ligules longer than wide;

blades mid to dark green, V- to W-shaped, widest leaves 1.8–6.5 mm wide, smooth.

peduncles of terminal staminate spikes 0–28 mm;

bracts to 18 cm × 0.6–3.4 mm;

inner band of sheaths concave or truncate.

7.5–45 cm;

proximal bract 10–50 cm, exceeding but not more than 2.5 times longer than inflorescence;

proximal 1–3 spikes pistillate, erect or the proximal ascending, ca. 20–150-flowered, cylindric;

terminal 1–3 spikes staminate, well elevated beyond summit of separate pistillate spikes.

proximal pistillate spikes 1–8, contiguous or proximal distant, sessile or short-pedunculate, globose to short-cylindric, 4–17.5 × 3–11 mm;

terminal staminate spike sessile or pedunculate, 5–25 × 1–3.6 mm.

spreading, yellow to dark olive, 1.8–4.2 × 0.8–2 mm, apex gradually or abruptly narrowed;

beak straight or reflexed less than 20°, 0.3–2.1 mm, scabrous or smooth.

ascending, often green or straw colored, 7–12-veined, veins running into beak, ovate, (3.6–) 4–7.5(–8.2) × 1.7–3.5(–4.5) mm, 2–3.5 times as long as wide, papery, apex contracted;

beak distinct, 1.1–2.6 mm, bidentulate, smooth, teeth straight, 0.3–0.9 mm.

1–1.8 × 0.7–1.4 mm.

yellow to pale brown, symmetric, not indented, trigonous, smooth.

pistillate scales pale brown to reddish brown, 1.4–3.2 × 0.8–1.7 mm, margins pale, narrow, hyaline; staminate scales reddish brown, lanceolate to ovate, 2.3–5.2 × 0.7–2 mm, margins narrowly pale hyaline, apex obtuse to acuminate.

0.9–3.1 mm.

scales lanceolate to narrowly ovate, 2.4–5.8 × 1.2–1.7 mm, shorter than perigynia, margins entire, apex acute to acuminate, awnless.

3.

= 70, 74, 82, 88.