Flora of North America species comparison

1–10+, erect, glabrous.

1–5+, erect, glabrous proximal to arrays.

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 tapering quickly to long, winged ciliate-margined petioles, blades ovate, 50–200 × 20–100 mm, margins serrate;

mid to distal cauline sessile, blades oblanceolate, 30–100 × 8–35 mm, reduced distally and becoming lanceolate-ovate, margins entire, abaxially sparsely strigose along nerves.

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

8–10 mm.

narrowly campanulate, 4.5–6 mm.

5–9 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

10–16;

laminae 4–6.5 × 0.4–0.6 mm.

6–10;

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

15–30;

corollas 5–5.6 mm, lobes 0.5–1.2 mm.

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

(20–26) in 4–6 series, recurved, unequal, conspicuously spreading, lanceolate, margins ciliate, apices acute to obtuse, finely strigose.

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

20–200, not secund, in narrow, elongate arrays of axillary and terminal racemiform clusters, branches and peduncles hairy, leafy-bracteate proximally.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(obconic) 1.5–2 mm, glabrous;

pappi 3–4.3 mm.

= 18.

= 18.