Flora of North America species comparison

1–5, sparsely to moderately strigoso-puberulent.

1–5(–10), ascending to erect (tall stems sometimes arching), branching proximal to arrays only in damaged stems, glabrous.

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 subsessile to winged-petiolate, petioles of proximalmost nearly completely sheathing stems, blades oblanceolate to elliptic-lanceolate, 60–600 × 3–20(–50) mm, thick and firm, obtuse to rounded, bases tapering, margins entire or obscurely serrate, glabrous;

proximal to distal cauline sessile, ascending to nearly appressed, lanceolate-oblong to linear, 10–30 × 2–4 mm, abruptly reduced proximally, then gradually so distally, margins entire, apices acute, faces glabrous.

linear, 1–3 mm, bracteate.

slender, 2–10 mm, glabrous or sparsely strigillose;

bracteoles linear.

narrowly campanulate, 3–5 mm.

narrowly campanulate, 4–6 mm.

0(–2).

3–7, 1.5–2 × ca. 0.5 mm.

4–8;

corollas 3 mm, lobes 1 mm.

usually 8–12;

corollas 3–5 mm, lobes 1–1.2 mm.

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

in 3–4 series, oblong, unequal, acute to rounded, 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.

15–250, sometimes secund on proximal branches and secund terminus, in linear, narrowly elongate paniculiform to elongate pyramidal-secund or thyrsiform-paniculiform and not secund arrays, sometimes with a few elongate proximal, arching branches.

2.5–3 mm, moderately short-strigose;

pappi 2 mm.

1.5–2.5 mm, sparsely to moderately strigose;

pappi 3 mm.

= 18.