Flora of North America species comparison

1–10+, erect, glabrous.

1–20(–50+), stout, finely puberulent or scabrous-puberulent at least distally.

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 absent at flowering;

cauline sessile to short-petiolate;

blades usually lanceolate-elliptic or ovate, sometimes linear-lanceolate, 30–150 × 5–30 mm, thick and firm, margins entire or few toothed, somewhat to much reduced distally, abaxial faces sometimes resinous and shiny, glabrous or strigillose (hairs mostly 0.1–1.4 mm), adaxial glabrous or scabrous.

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

mostly 2–15 mm, bracteolate, sparsely to densely short hispid-strigose.

narrowly campanulate, 4.5–6 mm.

campanulate, 4.5–7.5 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

(5–)7–9;

laminae 3–7 × 1–2 mm.

6–10;

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

(8–)10–16;

corollas 4–5 mm, lobes ca. 1–2 mm.

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

in 3–4 series, unequal, linear-lanceolate, acute to attenuate, ± squarrose-tipped, glabrous or moderately strigose, sparsely to moderately stipitate-glandular, sometimes viscid.

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

10–190+ in paniculiform (rarely racemiform) arrays, usually elongate, usually leafy-bracteate, bracts similar to distal leaves but reduced;

branches stiffly ascending, not secund, sometimes elongate.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

3–4 mm, glabrous or glabrate;

pappi ca. 4 mm.

= 18.

= 18, 36, 54.