Flora of North America species comparison

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

1–10+, ascending-erect, glabrous proximally, usually moderately scabrous-puberulent distally.

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 often present at flowering as new rosettes;

basal and proximal cauline often with distal portions withering by flowering, long-petiolate, blades shiny, ± 3-nerved, linear to oblanceolate, (30–)100–250 × (2–)5–15 mm, margins entire or sparsely serrulate, faces glabrous;

mid and distal cauline sessile, blades linear-lanceolate to linear, 15–80 × 1–7 mm, much reduced distally, faces glabrous or scabrous.

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

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

usually moderately to densely strigillose, sometimes sparsely so or glabrous;

bracts minute.

narrowly campanulate, 2.5–3.5(–4) mm.

campanulate, 4.5–6 mm.

(8–)11–15(–17);

laminae 1–2.5 × 0.1–0.4(–0.7) mm.

1–4;

laminae 3–5 × 1–1.5 mm.

(3–)5–11(–16);

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

7–13;

corollas 4–5 mm, lobes 0.5–1 mm.

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

outer lanceolate, inner linear-lanceolate.

in 3–4 series, broadly oblong, unequal, firm, striately nerved, rounded, glabrous.

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.

20–150+ in compactly corymbiform arrays, sometimes somewhat rounded.

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

pappi 2.5–3.3 mm.

(dark brown, obconic, full) 2–3 mm (7–10 nerved), glabrous;

pappi 4–5 mm (clavate).

= 18, 36.

= 18.