Flora of North America species comparison

straight or arcuate, 2–85 cm.

acutely angled, 10–110 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).

basal sheaths red-brown;

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

blades epistomic, 2–4.5 mm wide, adaxially papillose.

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 subequal to inflorescence, 1.5–4 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 2–3 spikes pistillate, 1.2–4.2 cm × 3–5 mm, base obtuse or acute;

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, pale brown with red-brown or black spots on apical 1/2, occasionally black on apical 1/2, 3–9-veined on each face, somewhat flattened, tightly enclosing achenes, stipitate, ellipsoid or obovoid, 2–3.7 × 1.1–2.1 mm, somewhat leathery, dull, base truncate, distended, apex obtuse or rounded, papillose;

stipe 0.1–0.3 mm;

beak red-brown or black, 0.1–0.2 mm, orifice scabrous.

1–1.8 × 0.7–1.4 mm.

not constricted, whitish iridescent, base adnate to perigynium.

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 dark purple-brown or black, shorter than perigynia, apex obtuse, awnless.

= 83, 84, 85.