Flora of North America species comparison

basally cormlike, trigonous, 5–40 cm × 0.5–1.3 mm, glabrous.

trigonous, (5–)20–60 cm × (0.2–) 0.6–2.4 mm, glabrous.

V-shaped, 5–25 cm × 1–3 mm, slightly minutely scabridulous abaxially on margins, midrib.

(1–)3–4, V-shaped, 15–40 cm × 3–6 mm.

spikes loosely ± globose, 6–20 mm wide;

rays 1–8 cm;

rachis 1–4 mm;

bracts 3–8, ascending, V-shaped, 3–20 cm × 1–3 mm;

rachilla deciduous, wings hyaline, 0.6 mm wide.

spikes 2–5(–8), oblong to ovoid, 2–10 cm × 3–12 mm;

rays 4–8, to 11 cm;

bracts (4–)5(–7), ascending at 45°, V-shaped, (1.5–)8–30(–50) cm × 1–6 mm;

rachilla persistent, wingless (successive floral scales 0.7–0.9 mm apart).

3–18(–28), oblong-lanceoloid, compressed, 3–12 × 1.8–2.5 mm;

floral scales deciduous, 2–11, yellowish brown to reddish brown, laterally 3–4-ribbed, ovate, 2–2.8 × 1.6–2.2 mm, apex mucronulate.

10–30, compressed, linear to ellipsoid, 4–20 × 1.5–2.1 mm;

floral scales deciduous, (2–)6–26, laterally brown to golden brown, edges clear, medially green, 5-ribbed, outermost ribs more noticeable than others, obovate to nearly orbiculate, 1.3–1.8 × 1.2–1.8 mm, margins emarginate, apex with mucro 0.05–0.12 mm.

anthers 0.7–1 mm;

styles 0.4–0.6 mm;

stigmas 1–2 mm.

stamens 2(–3);

anthers (0.2–)0.3–0.4 mm, connective tips reddish, less than 0.1 mm;

styles less than 0.1 mm;

stigmas 0.2–0.4 mm.

dark brown, ± stipitate, ellipsoid, 1.5–2 × 0.7–1 mm, apex obtuse, apiculate surfaces glabrous or puncticulate.

brown, slightly stipitate, obovoid, 1.2–1.4 × 0.5–0.7 mm, apex apiculate, surfaces puncticulate.

= 166.