Flora of North America species comparison

straight or arcuate, 2–85 cm.

7–60 cm, ± 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 bladeless, pale brown, slender, 0.7–2.8 mm diam., not or only very sparsely papillose;

ligules 2–4.5 mm, longer than wide;

blades of vegetative culms 5–40 cm × 1.5–4 mm;

those of fertile culms green, flat, less than 10 cm.

peduncles of terminal staminate spikes 0–28 mm;

bracts to 18 cm × 0.6–3.4 mm;

inner band of sheaths concave or truncate.

6.5–25 cm, 2–5 times longer than proximal bracts;

proximal bracts 2.5–8 cm, sheath 1–3.5 cm, blade 1–1.5 cm; pistillate spikes linear, 0.8–3 cm × 3–6.5 mm.

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.

3–15, the proximal loosely arranged, green to dark brown, often obscurely veined, 3.5–5 × 1.5–2.2 mm, smooth;

beak slender, cylindric, (0.4–)0.6–1.8(–2.2) mm.

1–1.8 × 0.7–1.4 mm.

light to dark brown, 2.2–3 × 1.2–1.5 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 tinged, apex broadly acute or obtuse.

= 32.