Flora of North America species comparison

straight or arcuate, 2–85 cm.

15–60 cm, proximally 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).

2.5–4 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 bracts usually shorter than, sometimes equaling, occasionally exceeding, inflorescences;

spikes spreading or erect, overlapping, contiguous, forming dense terminal cluster or, sometimes, proximal spikes separate, sessile, short-oblong, 7–12 × 6–10 mm;

lateral 2–3 spikes pistillate;

terminal spike gynecandrous.

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 or spreading, pale yellow, dark brown or blackish with green or yellow-brown margins, veinless, ovate or, rarely, circular, 3–4 × 2–3 mm, apex abruptly beaked, papillose on distal margins and serrulate;

beak 0.4–0.5 mm, shallowly or deeply bidentate, often serrulate.

1–1.8 × 0.7–1.4 mm.

filling proximal 1/2 or less of perigynia.

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 brown or black, distal margins often hyaline, ovate or lanceolate, shorter than or as long and broad as pergynia, midvein same color as body, inconspicuous, apex acute.