Flora of North America species comparison

1–10+, erect, glabrous.

1–3+, erect, flexuous in proximal arrays, moderately to densely 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 withering by flowering;

basal and proximal cauline abruptly tapering to winged, villous petioles (petioles ± 1/2 or less total leaf length), blades broadly ovate to spatulate, 46–80(–90) × 23–47(–55) mm, margins serrate [teeth 6–12(–15)], abaxial faces moderately villous, more so along nerves, adaxial sparsely to moderately villoso-strigose;

distal cauline petiolate, similar to proximal or more elliptic, 27–45 × 13–20 mm, margins entire to slightly serrate.

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

3–5 mm, sparsely strigose;

bracteoles 1–3 scattered, ovate.

narrowly campanulate, 4.5–6 mm.

campanulate, 4.3–6.5(–7) mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

3–5;

laminae 2.4–4 × 1–1.5 mm.

6–10;

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

5–8;

corollas 2.2–2.5 mm, lobes ca. 1–2 mm.

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

in ca. 3 series, unequal, outer ovate, 1–1.5 mm, obtuse to acute, inner oblong, 1-nerved.

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

10–30, in short axillary and terminal racemiform/paniculiform clusters.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(obconic) 1–2 mm, moderately hairy;

pappi 2.3–2.8 mm.

= 18.

= 36.