Flora of North America species comparison

(10–)20–90 cm × 0.5–0.8(–1.5) mm, scabrous distally.

blades trigonous-channeled in cross section, to 45 cm × 1–1.5(–3) mm;

distal leaf blade 3–25 cm × 1–1.5 mm, longer than its (1–)2.5–9 cm sheath.

blade-bearing involucral bracts solitary, similar to distal leaf, blade sometimes brown proximally, 0.8–6 cm.

(1–)2–7, in subumbels, ovoid, 7–10 mm in flower, 20–30 mm in fruit;

peduncles 5–20(–60) mm, scabrous;

scales green to red-brown to almost black, sometimes with green center, ovate-elliptic, 3–4.5 mm, scarious, margins narrow, to 0.2 mm, midrib prominent, fading distally or proximal scale with 2–4 thinner or equally prominent lateral ribs, apex obtuse.

perianth bristles 10 or more, cream, 10–20 mm, smooth;

anthers 1–2 mm.

narrowly obovoid, 2.5–3 mm.