Flora of North America species comparison

1–6(–10), erect, short-canescent (hairs ascending to appressed).

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

basal and proximal cauline tapering to long, winged petioles, blades spatulate-ovate to oblanceolate, 20–95 × 7–15 mm, margins crenate to entire, apices acute, faces densely puberulent;

mid and distal cauline (sometimes subtending axillary tufts of lateral branch leaves) sessile, blades linear-oblanceolate, 16–45 × 3–7 mm, reduced distally, margins entire.

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.

2–3.5 mm, bracteoles 0–4, linear.

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

bracteoles linear.

narrowly campanulate, 2.6–5.8 mm.

narrowly campanulate, 4–6 mm.

5–11;

laminae 2.8–5.5 × 0.3–0.7 mm.

3–7, 1.5–2 × ca. 0.5 mm.

3–10; 2.5–4.6 mm, lobes 0.4-0.6 mm.

usually 8–12;

corollas 3–5 mm, lobes 1–1.2 mm.

in 3 series, ovate to linear-lanceolate, unequal, outer acute, inner obtuse.

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

10–300, secund, in wandlike pyramidal, paniculiform arrays, secund to apically recurved, 8–25 × 2.5–10 cm, sometimes proximal branches elongate, repeating pattern.

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.

(obconic) 0.5–2 mm, strigose;

pappi 2–4 mm.

1.5–2.5 mm, sparsely to moderately strigose;

pappi 3 mm.