Flora of North America species comparison

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.

solitary or few together, 5–35(–70) cm, usually not more than 1 mm diam. basally;

basal sheaths persistent, brown or reddish, septate-nodulose.

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

distal 1–2 leaf sheaths bladeless, inflated.

blades channeled or strongly involute, 3–12 cm;

distal leaves usually bladeless with black-tipped sheath.

involucral bracts absent.

involucre absent.

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.

solitary, erect, broadly obovoid to subglobose in fruit, 8–12(–40) mm;

scales gray to blackish green;

proximal empty scales not more than 7, ovate, 4–10 mm, midrib not reaching tip;

distal scales narrower, more attenuate, margins hyaline, not more than 1 mm wide.

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

anthers (0.6–)1.5–3 mm.

perianth bristles 10 or more, bright white, sometimes red-tinged, 15–30 mm, smooth;

anthers 0.5–1.5 mm.

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

narrowly oblong, 0.4–2.5 mm, apex with subulate beak.

= 58.

= 58.