Flora of North America species comparison

1–5, sparsely to moderately strigoso-puberulent.

glabrous, viscid-resinous.

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 petiolate;

blades tapering to petioles, linear to elliptic-oblanceolate, 100–150 (–220) (including petiole) × 5–10(–15) mm, margins serrate, apices acute to obtuse; the outer much smaller;

mid and distal similar to basal, becoming sessile, mid 40–60 × 2–4 mm, distally reduced (in arrays) to linear bracts 10–35 × 1–2 mm, entire.

linear, 1–3 mm, bracteate.

2–6 mm, glabrous, sometimes resinous-glandular;

bracteoles linear, 0–5.

narrowly campanulate, 3–5 mm.

campanulate, 4.5–6 mm.

0(–2).

3–6;

laminae 3.5–5 × 1 mm.

4–8;

corollas 3 mm, lobes 1 mm.

mostly 8–10;

corollas 4.5–5.5 mm, lobes 0.8–1.2 mm.

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

(in 3–4 series) lanceolate to linear-lanceolate, strongly unequal, apices rounded, glabrous, somewhat resinous.

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

in paniculiform arrays, 15–30 cm, branches ascending, 2–10 cm, not secund in erect stems, secund in arching ones.

2.5–3 mm, moderately short-strigose;

pappi 2 mm.

obconic, ca. 2.5 mm, shallowly ribbed, glabrous;

pappi 4–5 mm.

= 18.

= 18.