Flora of North America species comparison

trigonous, 1–35 cm × 0.5–1 mm, glabrous.

1–6(–25), trigonous to roundly trigonous, (0.5–)2–5(–9) cm × 0.2–0.4–(0.6) mm, glabrous.

flat, 5–20 cm × 1–2 mm.

1–6, V-shaped, 1–6 cm × 0.3–1 mm.

heads ± digitate, 8–26 mm diam.;

rays 1–6, 0.5–5 cm;

bracts 3–4, ± horizontal, flat, 3–18 cm × 1–2 mm.

heads digitate, loosely ovoid, 3–18 × 3–26 mm;

rays (0–)1–6(–8), 2.5–20(–30) mm;

bracts 2–3(–5), horizontal to ascending at 45(–60)°, V-shaped, 2–60 × 0.3–1.2 mm.

6–25, ovoid to linear-lanceoloid, compressed, 4–15 × 1–2 mm;

floral scales 8–28(–40), clear, laterally ribless, ovate, 1.4–1.6 × 0.8 mm, apex awned, awn excurved, 0.3–0.5 mm.

(3–)10–20(–30), greenish to reddish brown, narrowly ellipsoid to oblong, 3–11 × (0.8–)1.2–1.5 mm;

floral scales (3–)6–20(–28), laterally greenish to reddish brown, glossy, medially greenish to light reddish brown, strongly recurved, laterally ribless, medially strongly 3-ribbed, oblong-ovate, (0.8–)1–1.3 × 0.8–1(–1.2) mm, apex emarginate, cusp 0.6–1.2 mm.

stamens 1–2;

anthers 0.2 mm;

styles 0.5 mm;

stigmas 0.3 mm.

stamens 2 or 3;

anthers oblong-ovoid, 0.1(–0.2) mm;

styles (0.2–)0.4–0.6 mm;

stigmas 0.3–0.5 mm.

dark brown to black, sessile, obovoid, 0.6 × 0.4 mm, apex obtuse, apiculate, surfaces minutely punctate.

brown, oblong-obovoid, (0.5–)0.6 × (0.3–)0.4 mm, base cuneate, apex blunt, surfaces coarsely papillose.