Flora of North America species comparison

1–10+, erect, glabrous.

1–30+, simple, sparsely to densely puberulent proximally to densely so 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 winged-petiolate-subpetiolate (poorly differentiated), blades to winged petioles;

blades oblanceolate, largest to 8 cm, usually smaller, gradually attenuate, margins entire, slightly undulate, sparsely to moderately soft-puberulent, somewhat viscid (stipitate-glands very small); mostly withering by flowering, new rosettes sometimes present;

cauline petiolate (petioles 0.5–1 mm), blades (linear) elliptic proximally to (narrowly) lanceolate or ovate distally, largest 50–80 × 15–25 mm, reduced distally and becoming more ovate, 15–20 mm in arrays, margins entire or serrulate.

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

0.5–5(–2.5) mm, densely short hispid-canescent, sparsely to densely stipitate-glandular, ± viscid;

bracts small, grading into phyllaries.

narrowly campanulate, 4.5–6 mm.

broadly campanulate, (3.5–)4–5(–5.5) mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

6–10;

laminae ca. 3–5 × 1–2 mm.

6–10;

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

10–20;

corollas 3–4 mm, lobes ca. 1 mm.

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

in 2–3 series, unequal, oblong to linear-lanceolate, acute to attenuate, sparsely to moderately strigose, especially distally, sparsely to densely stipitate-glandular, ± viscid.

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

1–140, not secund, in thyrsiform-paniculiform arrays, sometimes compact, nearly as wide as tall, and rounded, sometimes appearing almost rounded corymbiform, proximal branches sometimes much elongate, not secund, spreading to ascending.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

1.5–2.5 mm, ± moderately short-strigose;

pappi 3–4 mm.

= 18.

= 18.