Flora of North America species comparison

to 100 cm × 2 mm, scabrous.

solitary or not, erect, (25–)40–90(–110) cm.

sheath fronts spotted red-brown or pale brown, apex truncate or short-convex, membranous or hyaline, rugose;

ligule retuse or rounded, to 2 mm, free limb to 0.2 mm;

blades 120 cm × 5 mm, longer than flowering stem.

6–12;

basal sheaths purplish red;

sheath of distal leaf 0–1.5(–2.5) cm;

ligules rounded, 2.5–6 mm;

blades 12–34 cm × 4–11 mm.

spicate, (3–)7–10 cm × 15 mm, with 10–15 branches, the proximal branches distinctly separate; the proximal internode to 25 mm;

bracts setaceous, those subtending at least the proximal lateral branches conspicuous.

2.5–17 cm;

peduncles of proximal pistillate spikes 0.7–3.5 cm, basal 2 peduncles 1–4(–12) cm apart;

peduncle of terminal spike 0.5–6 cm;

bracts leafy, usually sheathless, blades 8–26 cm × 2–7 mm.

proximal pistillate spikes 1–2(–3), densely (4–)8–35-flowered, separate to aggregated, globular, 2.5–4.2 × 2.6–4.1 cm;

terminal staminate spike 1, 0.5–6.5 cm × 1–4 mm.

green to pale brown, veinless on both faces or 3-veined abaxially, body ovate or elliptic, 2–3.2 × 1.3–1.8 mm, base obtuse;

beak 0.8–1.2 mm, 1/3–1/2 length of perigynium.

radiating out in all directions, strongly 16–25-veined, rhombic-ovoid, 12.5–20 × 4–8 mm, base cuneate, dull, glabrous or, sometimes, hispidulous;

beak poorly defined, 1.5–3 mm.

red-brown, ovate, 1.2–1.4 × 1 mm, glossy.

sessile, ellipsoid to obovoid, faces convex, angles not thickened, 3.3–4.8 × 2.6–3.7 mm;

style withering.

pale brown, hyaline, awn to 3 mm.

scales 1–5-veined, lanceolate-ovate to ovate-orbicular, 4–11 × 2–4.2 mm, apex obtuse to awned, awn to 7 mm, rough.

3, 2.5–4.8 mm.

= 52.