Flora of North America species comparison

straight or arcuate, 2–85 cm.

30–60 cm, scabrous to smooth 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).

proximal sheaths fibrillose, bladeless, brown- to reddish purple tinged, 2–4.5 mm diam.;

ligules 2–10 mm, longer than wide;

largest blades green, flat, 4–45 cm × 2.5–6 mm.

peduncles of terminal staminate spikes 0–28 mm;

bracts to 18 cm × 0.6–3.4 mm;

inner band of sheaths concave or truncate.

6–19 cm, 1.4–2.2 times longer than proximal bract;

proximal bracts 2–9 cm;

sheath 0.6–2 cm, blade 1.5–7 cm;

proximal spikes pistillate or androgynous;

lateral spikes cylindric, 1.5–3.5 cm × 7.5–11 mm;

terminal 1–3 spikes, staminate.

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.

densely arranged, green to light brown, 2-ribbed and finely veined, 4.2–6.8 × 1.5–2.5 mm, with low, broad papillae;

beak purple tinged, mouth hyaline, obliquely bidentate, asymmetrically flared, 0.8–1.8(–2.2) mm.

1–1.8 × 0.7–1.4 mm.

light to dark brown, 2.2–2.8 × 1.4–2.3 mm.

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 purple or brown, apex rounded or obtuse.