Flora of North America species comparison

1–10+, erect, glabrous.

1–5+, glabrous, sparsely strigose in 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 petiolate;

blades broadly elliptic to ovate, 100–350 × 60–120 mm (including petioles), bases truncate to obtuse, apices acute to acuminate, margins sharply serrate, glabrous;

distal cauline blades spreading to ascending, linear-elliptic, 30–50 × 6–15 mm.

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

1.5–3 mm, glabrate to moderately short hispido-strigose, bracteoles 1–5, linear-lanceolate grading into phyllaries.

narrowly campanulate, 4.5–6 mm.

campanulate, (4.5–)5–7 mm (much exceeded by pappi).

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

4–9;

laminae 4–5 × 1.5–2.5 mm.

6–10;

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

9–11;

corollas 4–5 mm, lobes ca. 1.5 mm.

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

in 3–4 series, linear-lanceolate, strongly unequal.

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

25–50+, in elongate, paniculiform arrays, proximal branches recurved-secund, sometimes elongate.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(brown, ribs dark brown) 3 mm, sparsely short-strigose;

pappi 3–4 mm.

= 18.

= 54.