Flora of North America species comparison

1–10+, erect, glabrous.

usually 1, ascending to erect, uniformly short villoso-strigose, occasionally glabrate proximally.

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 short-petiolate, blades broadly ovate or elliptic-ovate, margins serrate, ± 3-nerved and pinnately nerved, abaxial faces (at least) evenly short villoso-strigose;

mid and distal cauline like proximal, 20–70 × 10–40 mm (1.3–2 times as long as wide), usually only those near arrays reduced and 1-nerved.

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

1–6 mm;

bracteoles ovate, minute, grading into phyllaries.

narrowly campanulate, 4.5–6 mm.

campanulate, 3–4.5 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

3–7;

laminae 1.5–2 × 0.5–1 mm.

6–10;

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

4–7;

corollas (abruptly ampliate) 3–3.5 mm, lobes ca. 1 mm.

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

in 3 series, strongly unequal, obtuse or rounded;

mid broadly oblong, inner narrowly so.

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

30–200+, apparently sometimes drooping, in open leafy, secund pyramidal, paniculiform arrays, branches recurved, leafy-bracteate, secund, proximalmost branch sometimes separated by several nodes from next.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

1.5–2 mm (4–8 translucent ribs), moderately short-strigose;

pappi 2–2.5 mm.

= 18.

= 18.