Flora of North America species comparison

1–10+, erect, glabrous.

1, ascending-erect, softly short villous.

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 and proximal cauline winged-petiolate petioles (petioles 1/2+ leaf length), blades broadly ovate (or subcordate) to elliptic, 50–100(–160) × 30–40 mm, margins shallowly serrate-crenate, apices acute to obtuse, soft short-villous;

mid and distal cauline subpetiolate or sessile, blades ovate to elliptic, 20–40 × 5–15 mm, greatly reduced, becoming narrowly elliptic.

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

slender.

narrowly campanulate, 4.5–6 mm.

campanulate, 4–5 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

usually 7–12;

laminae 3–6 × 1.5–2 mm.

6–10;

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

usually 14–27;

corolla tubes 4 mm, lobes 0.8–1 mm.

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

in 3–4 series, broadly lanceolate, unequal, glabrate or sparsely short-strigose.

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

50–100, in paniculiform arrays, proximal branches obscurely to evidently recurved-secund.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

1.5–2.5, sparsely strigose;

pappi ± 3 mm (shorter than corollas).

= 18.

= 18.