Flora of North America species comparison

straight or arcuate, 2–85 cm.

acutely angled, 10–50 cm, scabrous.

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).

sheaths of proximal leaves glabrous, fronts lacking spots and veins, apex concave;

blades 1.5–4 mm wide.

peduncles of terminal staminate spikes 0–28 mm;

bracts to 18 cm × 0.6–3.4 mm;

inner band of sheaths concave or truncate.

proximal bract setaceous or foliaceous, shorter than inflorescence, 0.5–3 mm wide.

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.

erect;

proximal (1–)2–3 spikes pistillate, 0.7–3 cm × 3–4 mm, base cuneate or attenuate;

terminal 1(–2) spikes staminate.

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, green, spotted purple-black or mottled on apical 1/2, veinless, somewhat flattened, tightly enclosing the achenes, ellipsoid, 1.5–3.5 × 0.9–2 mm, dull, apex rounded or acute, papillose;

stipe to 0.45 mm;

beak 0–0.2(–1) mm.

1–1.8 × 0.7–1.4 mm.

not constricted, dull.

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 black, equaling or shorter than perigynia, apex obtuse or acute, awnless.