Flora of North America species comparison

1–10+, erect, glabrous.

1–5, densely, evenly villoso-tomentose (hairs white, thin, crisped).

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 0;

mid and distal cauline lanceolate to narrowly lanceolate, 3-nerved, 50–80(–120) × 5–10(–12) mm, reduced distally to 10–20 mm, margins shallowly crenate or serrate to nearly entire, faces moderately to densely short pilose (hairs somewhat ascending).

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

moderately to densely villoso-strigillose, rarely sparsely minutely stipitate-glandular;

bracteoles 1–2(–4).

narrowly campanulate, 4.5–6 mm.

narrowly campanulate, 3–4 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

7–15;

laminae 1–2(–3) × 0.1–0.6 mm.

6–10;

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

5–9;

corollas 2.8–3 mm, lobes 0.4–1.1 mm.

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

in 3–4 series, oblong-lanceolate or lanceolate to narrowly elliptic, strongly unequal, margins apically ciliate, glabrous, rarely outer sparsely, minutely stipitate-glandular.

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

80–950, secund, in narrowly pyramidal paniculiform arrays, 3–4 times as long as wide, branches spreading and slightly secund, bracts linear-lanceolate, 3–6 mm.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(narrowly obconic) 1.4–1.6 mm, sparsely strigillose;

pappi ca. 3 mm.

= 18.

= 18.