Flora of North America species comparison

to 100 cm × (0.8–)1–1.2 mm distally.

solitary or few together, somewhat trigonous, (20–)30–70(–80) cm, stout, to 1.5(–4) mm diam. basally;

basal sheaths persistent, brown to purplish brown, septate-nodulose.

blades flat, tip trigonous, channeled in cross section, to 40 cm × 1.5–6(–8) mm;

distal leaf blade much longer than sheath.

blades filiform, trigonous-channeled, (2–)3–10 cm × 1–2 mm;

distal 1–2 leaf sheaths bladeless, inflated.

blade-bearing involucral bracts 1–3, proximally blade, often sheath black, leaflike, longest 1–12 cm.

involucral bracts absent.

(1–)2–10, in subumbels, patent or pendent, ovoid, 10–20 mm in flower, 20–50 mm in fruit;

peduncles 5–60 mm, smooth or scabrous;

scales lanceolate or ovate, 5–10 mm, with prominent midrib fading proximal to tip, apex ± acute;

proximal scales without lateral ribs.

solitary, erect, globose in fruit, 1.5–2(–4) cm;

scales blackish to purplish brown;

proximal empty scales not more than 7, obovate or trigonous-obovate, 4–20 mm, margins white or paler, as wide as dark portion, apex blunt;

distal scales obovate to ovate-lanceolate, margins hyaline, 1 mm wide or wider.

perianth bristles 10 or more, white or pale yellow brown, 15–30 mm, smooth;

anthers 2–5 mm.

perianth bristles 10 or more, red-brown to white, 20–40 mm, smooth;

anthers (0.6–)1.5–3 mm.

black, oblanceoloid, 2–5 mm.

oblong-obovoid, 2–2.7 mm, as wide as long, apex apiculate (0.3–0.5 mm).

= 58.