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.

5–20(–50) cm, smooth or rough distally.

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

distal 1–2 leaf sheaths bladeless, inflated.

cauline leaves 0–1, distal leaf usually proximal to mid culm, bladeless or with short blade;

blade forming angle with sheath, filiform or trigonous-channeled, 0.4–1.2 mm wide.

involucral bracts absent.

involucral bracts absent or present as short blade on distal leaf.

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, globose in fruit, 10–20 mm in flower, 15–30 mm in fruit;

scales pale blackish brown, margins and tip hyaline, ovate-lanceolate, thin;

proximal empty scales mostly 10–15, appressed to ascending, ovate, 5–8 mm, ribs ± to margins, midrib not reaching tip, apex acute.

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

anthers (0.6–)1.5–3 mm.

perianth bristles white to very pale brown;

anthers 0.6–1.2 mm.

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

ellipsoid-obovoid, 1.8–2.1 mm.

= 58.

= 60.