Flora of North America species comparison

1–10+, erect, glabrous.

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.

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

narrowly campanulate, 4.5–6 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

6–10;

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

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

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

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

= 18.