Flora of North America species comparison

1–5+, sparsely to moderately short strigose or villous.

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

basal withering by flowering, petiolate, smaller to much smaller than cauline, blades oblanceolate, margins serrate;

cauline sessile, blades elliptic-lanceolate or -oblanceolate, mid 80–140 × 2.5–4 mm, distally reduced, usually membranous, bases tapering, attenuate, margins sharply toothed along much of length to nearly entire, ciliate, abaxial faces short-pilose along small and large nerves, adaxial short-pilose along larger nerves.

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.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

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

bracteoles linear- lanceolate to ovate.

campanulate, 4.5–5.5 mm.

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

6–8;

laminae 3–4 × 1–1.5 mm wide.

(4–)6–8(–12);

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

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

(2–)4–6(–8);

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

in ca. 3 series, strongly unequal, erect to slightly squarrose-tipped, lanceolate, apices acute, glabrate, sparsely to moderately, finely stipitate-glandular.

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

5–160 (2–10+ more per short branch cluster), in narrowly elongate paniculiform arrays, branches usually 1–6 cm (much longer in damaged plants, sometimes 1–3 proximal branches much elongated in undamaged plants), ascending and bearing short terminal racemiform or paniculiform clusters.

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.

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

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

pappi 1.8–2.5 mm.