Flora of North America species comparison

1–10+, erect, glabrous.

1–6(–10), erect, short-canescent (hairs ascending to appressed).

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 to long, winged petioles, blades spatulate-ovate to oblanceolate, 20–95 × 7–15 mm, margins crenate to entire, apices acute, faces densely puberulent;

mid and distal cauline (sometimes subtending axillary tufts of lateral branch leaves) sessile, blades linear-oblanceolate, 16–45 × 3–7 mm, reduced distally, margins entire.

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

2–3.5 mm, bracteoles 0–4, linear.

narrowly campanulate, 4.5–6 mm.

narrowly campanulate, 2.6–5.8 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

5–11;

laminae 2.8–5.5 × 0.3–0.7 mm.

6–10;

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

3–10; 2.5–4.6 mm, lobes 0.4-0.6 mm.

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

in 3 series, ovate to linear-lanceolate, unequal, outer acute, inner obtuse.

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

10–300, secund, in wandlike pyramidal, paniculiform arrays, secund to apically recurved, 8–25 × 2.5–10 cm, sometimes proximal branches elongate, repeating pattern.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(obconic) 0.5–2 mm, strigose;

pappi 2–4 mm.

= 18.