Flora of North America species comparison

trigonous, 5–35 cm × 0.7–1.2 mm, glabrous.

trigonous, 15–60 (–100) cm × 0.6–3.4 mm, glabrous.

V-shaped, 5–25 cm × 1.5–3.5 mm, slightly scabridulous on abaxial margins, midrib.

3–7, flat to V-shaped or flanged V-shaped, (6–)20–40(–80) cm × 2–4 (–6.5) mm.

spikes loosely ± globose, 15–25 mm wide;

rays 1–10 cm;

rachis 1–4 mm;

bracts 3–7, ascending, V-shaped, 3–20 cm × 1–3 mm;

rachilla deciduous, wingless.

spikes broadly ellipsoid to ovoid or hemispheric, (12–)18–30 × (12–)18–35 mm;

rachis 4–17 mm;

rays 4–10, (0.3–)2–12 cm;

bracts (3–)4–5(–7), ± horizontal to ascending at 45(–75)°, V-shaped to flanged V-shaped, (1.5–)5–30 cm × 0.5–4 mm;

rachilla persistent, wings hyaline, 0.3–0.5 mm wide.

3–24, compressed, oblong-lanceoloid, 4–12 × 2.5–3.2 mm;

floral scales deciduous, 3–9, pale reddish brown, ovate, laterally 3–5-ribbed, 2.5–3 × 2–2.4 mm, apex acute to obtuse.

(3–)10–20(–28), divaricate or ascending, yellowish brown to dark brown, linear to linear-lanceoloid, compressed-quadrangular, (5–)10–20(–55) × (1.2–)1.4–2(–3) mm;

floral scales persistent, 6–34, spreading or appressed, ovate-lanceolate, laterally 7–9-ribbed, laterally yellowish brown to dark brown medially brownish, reddish, or greenish, ovate, or ovate-deltate, medially 3-ribbed, 1.8–2.7(–3.4) × (1–)1.5–1.8(–2.4) mm, apex acute or subacute.

anthers 1–1.2 mm;

styles 0.4–0.6 mm;

stigmas 1–2 mm.

anthers (1–)1.2–1.5(–2.1) mm;

styles (0.7–)1–1.2(–2.2) mm;

stigmas (1.2–)1.8–2.3(–4) mm.

dark brown, ± stipitate, ellipsoid, 2–2.4 × 0.9–1.2 mm, apex obtuse, apiculate, surfaces glabrous, puncticulate, or papillose.

(seldom maturing) brown, sessile, ellipsoid, (1.1–)1.3–1.5(–1.6) × 0.3–0.6(–0.8) mm, apex obtuse, surfaces puncticulate.

= 166.