Flora of North America species comparison

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

trigonous, 150–250 cm × 2–15 mm, glabrous.

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

inversely W-shaped, 30–150 cm × 6–22 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 1–4, cylindric, 1.5–4 cm × 7–15 mm;

rays 3–9, 10–26 cm; 2d order rays 2–11 cm; 3d order rays 1–4 cm (or absent);

bracts 3–5, ± horizontal, 20–100 cm × 3–15 mm; 2d order bracts 2–7 cm × 2–7 mm; 3d order bracts 2–5 cm × 2–4 mm (or absent);

rachilla persistent, wingless or wing hyaline, narrow, 0.1 mm wide.

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.

50–100, linear, ± quadrangular, slightly compressed, 8–11 × 0.9–1.2 mm;

floral scales 15–30, marginally clear, laterally reddish along midrib, medially green, laterally 3–4 ribbed, medially 3–5-ribbed, ovate, 1–2–1.6 × 1.1–1.3 mm, apex mucronulate.

anthers 0.7–1 mm;

styles 0.4–0.6 mm;

stigmas 1–2 mm.

anthers 2, 0.4–0.5 mm;

styles 0.8–1 mm;

stigmas 2, 0.4 mm.

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

dark brown, sessile, ellipsoid to obovoid, 0.9 × 0.4–0.5 mm, surfaces finely puncticulate.

= 166.