Flora of North America species comparison

1–10+, erect, glabrous.

usually 1, erect, 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 and proximal cauline narrowing abruptly to elongated petioles, blades spatulate to lanceolate or ovate, 60–120(–150) × 14–45(–65) mm, gradually reduced distally, margins serrate (teeth 4–17), abaxial faces glabrous, glabrous or hairy along nerves, adaxial glabrous or sparsely strigose;

mid to distal cauline petiolate to sessile, abruptly to gradually tapering to short broadly winged petiole-like bases, blades lanceolate, 22–46(–57) × 8–20(–29) mm, bases rounded, margins entire to slightly serrate, apices acute to acuminate, faces glabrous or sparsely hairy.

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

5–25 mm, densely short hispido-strigose;

bracteoles 0–3, linear.

narrowly campanulate, 4.5–6 mm.

campanulate, (8.6–)9.5–11.5(–12.5) mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

7–13;

laminae (4–)4.5–6.5 × 1–2 mm.

6–10;

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

14–29;

corollas (4.4–)5–6 mm;

lobes 1–2 mm.

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

in 2–3 series, sometimes weakly unequal, glabrate, margins ciliate;

outermost ovate, 3–5(–7) mm, acuminate, innermost lanceolate, 1-nerved, tapering to rounded tip.

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

2–110+ (1–10 per branch) in leafy, racemiform or short, axillary and terminal racemiform-paniculiform clusters, lateral branches erect, 4–43 cm.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(± linear-obconic) 1.4–4.4 mm, glabrous;

pappi (3.7–)5–6.5(–7.3) mm.

= 18.

= 18.