Flora of North America species comparison

1–20+, erect, proximally sparsely to moderately strigoso-villous, distally usually moderately to densely so.

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

basal 0;

proximal cauline sessile, blades narrowly to broadly oblanceolate, 35–75(–100) × (6–)7.5–14(–20) mm, proximal much smaller, tapering to bases, margins subentire or finely serrulate to coarsely, sharply serrate (teeth 0–9 per side), ciliate, 3-nerved, sometimes obscurely so, apices acute, abaxial faces glabrate to sparsely short-strigose, adaxial glabrous;

mid to distal cauline sessile, blades oblanceolate, becoming lanceolate distally, 20–60 × 4–8(–11) mm, largest near mid stem, somewhat to much reduced distally, margins entire or finely serrulate, rarely serrate (teeth 1–8 per side), usually becoming entire to sparsely serrulate distally, ciliate, apices acute, faces glabrous or sparsely strigoso-villous, more so along abaxial nerves.

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.

2–7 mm, sparsely to moderately short strigoso-villous;

bracteoles 1–3, linear, rarely minutely stipitate-glandular.

5–6 mm, moderately hispidulo-strigillose;

bracteoles 0–1, linear-lanceolate.

narrowly campanulate, 2.5–3.5(–4) mm.

broadly campanulate, 5–7.5 mm.

(8–)11–15(–17);

laminae 1–2.5 × 0.1–0.4(–0.7) mm.

6–15;

laminae 2–4 × 1–2 mm.

(3–)5–11(–16);

corollas 2.6–3.7(–4) mm, lobes 0.5–1.2 mm.

12–35;

corollas 4–5.5 mm, lobes 1–2 mm.

in 3–4 series, strongly unequal, margins sparsely long ciliate, acute, faces glabrous, rarely sparsely minutely stipitate-glandular;

outer lanceolate, inner linear-lanceolate.

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

12–500+, sometimes secund, in short to long, thyrsiform or narrowly secund-pyramidal paniculiform arrays, usually congested, club-shaped to rarely wand-shaped, (2.5–) 10–20 × (2–)4–8(–10) cm, branches usually ascending or sometimes arching spreading.

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

(narrowly obconic) 1–1.5 mm, sparsely to moderately strigose;

pappi 2.5–3.3 mm.

1–2.5 mm, strigose;

pappi 3–5 mm.

= 18, 36.

= 36.