Flora of North America species comparison

roundly trigonous, 200–350 cm × 15–50 mm, glabrous.

trigonous, glabrous.

bladeless.

V-shaped to flat, (2–)4–11 cm × 3–4 mm.

spikes loosely cylindric, 15–40 × 8–16 mm;

rays 5–8, ascending to erect, stiff,20–30 cm; 2d order rays 5–15 cm;

bracts 10–12, ascending at 30–60°, flat, (8–) 20–45 cm × 4–12 mm; 2d order bracts (5–)15–25 cm × 1.5–5 mm;

rachilla persistent, separating laterally, remaining firmly attached basally, wings 0.3–0.4 mm wide.

rays absent;

bracts 2–4, ± horizontal, flat, 1–6.5 cm × 2–3 mm;

rachilla persistent, wingless.

(15–)50–80, slightly compressed, linear, ± quadrangular, 5–12 × 0.6–1.4 mm;

floral scales 8–20, appressed, reddish beside 5-ribbed green medial part, white to hyaline near margins, ovate, 1.8–2.2 × 1.2–1.5 mm, apex acute to obtuse.

10–40, compressed, ovoid to linear-lanceoloid, quadrangular, 5–9 × 2–3 mm;

floral scales deciduous, 5–20, spreading, pale greenish to reddish brown, laterally (5–)7–9(–13)-ribbed, ovate, 3–4 × 1–2 mm, apex straight, excurved mucronate, or cuspidate.

anthers 0.7–1 mm (connective prolonged beyond anther as red subulate appendage 0.2–0.5 mm, its apex sometimes setose);

styles 0.2–0.5 mm;

stigmas (0.8–)1.2–1.8 mm.

stamens 1–2;

filaments 1.5 mm;

anthers 0.8–1 mm, connective apex reddish yellow, less than 0.1 mm;

styles 0.8–1 mm;

stigmas 1–1.2 mm.

pale brown, sessile, oblong, 0.9–1 × 0.4–0.5 mm, apex scarcely apiculate, surfaces puncticulate.

brown to reddish brown, broadly ellipsoid to obovoid, 0.8–1.2 × 0.5–0.6 mm, base ± cuneate, apex truncate-obtuse, surfaces puncticulate.