Flora of North America species comparison

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

1–5+, ascending to erect, hirtellous-puberulent in arrays.

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 petiolate, tapering;

blades spatulate to oblanceolate, 20–150 × 5–40 mm, margins ciliate, serrate crenate, apices acute to rounded, faces glabrous;

distal usually 2–5, sessile, blades sometimes ± clasping, oblanceolate, 20–40 × 4–9 mm, distally reduced and becoming broadly to narrowly lanceolate, margins entire, apices acute to obtuse.

0.5–2 mm;

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

5–6 mm, moderately hispidulo-strigillose;

bracteoles 0–1, linear-lanceolate.

narrowly campanulate, 3–5 mm.

broadly campanulate, 5–7.5 mm.

4–7;

laminae 2–3.5 × 0.2–0.7 mm.

6–15;

laminae 2–4 × 1–2 mm.

4–6;

corollas 3 mm, lobes 1 mm.

12–35;

corollas 4–5.5 mm, lobes 1–2 mm.

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

unequal, outer (lengths 1/2 inner) deltate, acute, inner lanceolate, obtuse.

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

2–50(–160) in compact corymbiform arrays in smaller plants, corymbiform to paniculiform arrays in larger ones.

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

pappi 3 mm.

1–2.5 mm, strigose;

pappi 3–5 mm.

= 18, 36.

= 36.