Flora of North America species comparison

usually 1–3, ascending to erect, scabrous to loosely puberulent.

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

basal and proximal usually withering by flowering, tapering to long-winged petioles, blades oblanceolate, 30–100 × 7–20(–30) mm, margins serrate or crenate, mid usually largest, apices acute to obtuse, acuminate, faces scabrous;

mid and distal cauline subsessile (1 mm) or sessile, blades (sometimes ± shiny) elliptic to oblanceolate, 10–50 × 5–15(–25) mm, greatly reduced distally, grading into bracts, firm, bases convex-cuneate to rounded, margins finely serrate, often 3-nerved, nerves usually distinct abaxially, faces distinctly scabrous.

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.

0.5–2 mm;

bracteoles 1–5, linear-lanceolate to ovate, minute, grading into phyllaries distally.

2–3.5 mm, bracteoles 0–4, linear.

narrowly campanulate, 3–5 mm.

narrowly campanulate, 2.6–5.8 mm.

4–7;

laminae 2–3.5 × 0.2–0.7 mm.

5–11;

laminae 2.8–5.5 × 0.3–0.7 mm.

4–6;

corollas 3 mm, lobes 1 mm.

3–10; 2.5–4.6 mm, lobes 0.4-0.6 mm.

in 3–4 series, unequal, oblong, midnerves swollen distally, obtuse or acute to slightly acuminate.

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

20–260, in paniculiform arrays, narrowly to broadly secund, pyramidal, branches recurved, secund.

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

1.5–2.5 mm, sparsely to moderately short-strigose;

pappi 3 mm.

(obconic) 0.5–2 mm, strigose;

pappi 2–4 mm.

= 18, 36.