Flora of North America species comparison

1–50+, erect, glabrous or densely hispid to strigose.

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

basal withering by flowering;

proximal cauline usually withering by flowering, sessile, blades elliptic to lanceolate, 68–104 × 20–25 mm, margins sharply serrate, apices acute to attenuate, abaxial faces usually hispido-strigose (at least on main nerves), nerves sometimes prominent, abaxial glabrate;

mid to distal cauline sessile, blades lanceolate, elliptic or ovate, (15–)40–75(–90) × (6–)12–22(–32) mm, largest at midstem, somewhat reduced to much reduced distally, margins coarsely to finely serrate, ciliate, indument similar to proximal or denser.

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.

1–1.8 mm, sparsely to densely hispido-strigillose;

bracteoles linear- lanceolate to ovate.

5–6 mm, moderately hispidulo-strigillose;

bracteoles 0–1, linear-lanceolate.

narrowly campanulate, (2–)2.5–3.5(–4.5) mm.

broadly campanulate, 5–7.5 mm.

(4–)6–8(–12);

laminae (0.9–)1–1.6(–2.3) × 0.4–0.7 mm.

6–15;

laminae 2–4 × 1–2 mm.

(2–)4–6(–8);

corollas 2–3.5(–4.5) mm, lobes (0.5–)0.7–1(–1.3) mm.

12–35;

corollas 4–5.5 mm, lobes 1–2 mm.

in 3–4 series, strongly unequal, lanceolate to linear-lanceolate, acute to obtuse.

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

50–1500, secund, in secund-pyramidal paniculiform arrays 7–36(–50) × 9–26 cm, compact to lax, branches divergent and recurved, longest 0.8–34 cm, leafy-bracteate.

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

(narrowly obconic) 0.9–1.5 mm, moderately strigillose;

pappi 1.8–2.5 mm.

1–2.5 mm, strigose;

pappi 3–5 mm.

= 36.