Flora of North America species comparison

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

trigonous, 5–50 cm × 0.4–2 mm, glabrous.

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

flat, 10–30 cm × 1–3 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.

heads loosely globose, 10–22 mm diam.;

rays 0–6, 1–7 cm;

bracts 3–6, horizontal to slightly ascending, flat, 3–26 cm × 1–3 mm.

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.

6–20, linear-lanceoloid, compressed, 7–30 × 2–3 mm;

floral scales 8–28, stramineous to light reddish brown, laterally ribless, ovate, 2.7–3.6 × 1.6–1.8 mm.

anthers 0.7–1 mm;

styles 0.4–0.6 mm;

stigmas 1–2 mm.

stamens 2;

anthers 0.5 mm, connective apex reddish, subulate, 0.1–0.2 mm;

styles 1.9–2.1 mm;

stigmas 1–1.3 mm.

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

brown, oblong, 1.2–1.6 × 0.6–0.9 mm, base cuneate to ± stipelike, apex obtuse, apiculate, surfaces minutely punctate.

= 166.