Flora of North America species comparison

1–10+, erect, glabrous.

1, erect, slender.

basal and proximal cauline usually withering by flowering (other rosettes may be present), tapering to long, winged petioles, blades often recurved, linear- lanceolate or -oblanceolate, 100–240 × 8–16 mm, folded along midrib (V-shaped in cross section), bases usually with (2–)3–8 prominent lateral nerves, apices acute to obtuse, faces glabrous;

mid to distal cauline sessile, blades recurved, linear-lanceolate, 50–70 × 8–11 mm, reduced distally, folded, bases with prominent lateral nerves.

basal tufted, tapering, petiolate, petioles 20–100 mm, blades oblanceolate or elliptic, 30–120 (including petiole) × 5–15 mm, obtuse to rounded;

cauline sessile, blades oblanceolate to linear-lanceolate, 5–80 × 4–1.3 mm, abruptly reduced proximally, becoming bractlike proximal to arrays.

2.8–4 mm, moderately short-hispido-strigose, lanceolate bracteoles 0–1.

2–25 mm;

bracteoles crowded, linear, 1–2 mm, grading into phyllaries.

narrowly campanulate, 4.5–6 mm.

broadly campanulate, 3.5–5 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

6–14;

laminae 2–3 × 1–2 mm.

6–10;

corollas 4.5–5.2 mm, lobes 0.7–1.8 mm.

mostly 12–30;

corollas 3.5–4 mm, lobes 0.5–0.75 mm.

(14–18) in 3–4 series, unequal, obtuse, broad, striations weak, obtuse to rounded, glabrous.

in 3–4 series, linear-lanceolate, strongly unequal, acute to slightly acuminate or cuspidate, glabrous.

30–450 in corymbiform to somewhat paniculiform with rounded corymbiform branches (robust plants) arrays, branches and peduncles strigillose.

5–20(–50), in slender racemiform or paniculiform arrays, sometimes secund and apically recurved, more often erect and not secund, sometimes compact and somewhat rounded to only slightly elongate.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

1.5–2 mm, sparsely finely strigose;

pappi (basally broader and flattened, fused to varying lengths) 3–4 mm (somewhat clavate).

= 18.

= 36.