Flora of North America species comparison

1–5, sparsely to moderately strigoso-puberulent.

1 (at ends of rhizomes), ascending to erect, grayish green, moderately to densely finely strigilloso-puberulent.

basal petioles 3–5 cm, blades oblanceolate or spatulate to ovate or rotund, 2–4 cm (excluding petioles);

cauline (numerous) subsessile or sessile, blades elliptic or lance-elliptic to ovate, mid mostly 25–50(–65) × 10–25 mm, distal much reduced;

branch leaf petioles 1 mm, blades ovate, 5–15 (excluding petioles) × 2–10 mm.

basal and proximal often withering by flowering, gradually tapering to winged petioles 1/2 length of leaf, blades 45–100 × 10–35 mm, proximalmost much smaller, margins serrate, faces moderately finely scabroso-strigillose;

mid and distal cauline sessile, blades elliptic to lanceolate or ovate, 10–60 × 4–20 mm, sometimes much reduced distally, firm, thickish, margins serrate to entire, strongly 3-nerved or sometimes brochidodromous, faces moderately finely strigillose.

linear, 1–3 mm, bracteate.

0.5–3 mm, moderately to densely finely hispiduloso-strigillose;

bracteoles 0–3, lanceolate, strigillose, grading into phyllaries.

narrowly campanulate, 3–5 mm.

campanulate, 3–6 mm.

0(–2).

6–10;

laminae 1–2 × 0.2–0.6 mm.

4–8;

corollas 3 mm, lobes 1 mm.

3–8;

corollas 2.4–3.8 mm, lobes 0.7–1.2 mm.

in 3–4 series, lanceolate, strongly unequal, margins ciliate, apices acute, glabrous.

in 3–4 series, lanceolate to oblong (to 1.5 mm wide), strongly unequal, margins ciliate, apices acute to obtuse, glabrous.

75–200 in open paniculiform arrays, branches divaricate, ascending to recurved, weakly to strongly secund, to 50 cm, secondary branches less than 3 cm.

(5–)50–300, in compact thyrsiform to secund-pyramidal paniculiform arrays, proximal branches ascending, sometimes apically recurved or branches spreading, recurved, secund.

2.5–3 mm, moderately short-strigose;

pappi 2 mm.

(cylindro-obconic) 1.5–2 mm, sparsely strigillose;

pappi ca. 2–3 mm.

= 18.

= 18, 36, 54.