Flora of North America species comparison

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

1–10+, erect, proximally glabrous, glabrous or sparsely villoso-strigose in arrays; often with short fascicles in axils of mid to distal cauline leaves.

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.

rosettes present at flowering;

basal and proximal tapering to winged petioles, blades oblanceolate, 70–210 × 8–28 mm, somewhat fleshy (fresh), margins entire, sometimes shallowly crenate or serrate distally, sometimes undulate, apices acute, mucronate or attenuate, glabrous;

mid and distal cauline not crowded, sessile, blades lanceolate to linear-lanceolate, 10–120 × 5–16 mm, reduced distally, margins entire.

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

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

2–8 mm, glabrous or sparsely strigose;

bracteoles 0–4.

narrowly campanulate, 2.5–3.5(–4) mm.

narrowly campanulate, 3–4 mm.

(8–)11–15(–17);

laminae 1–2.5 × 0.1–0.4(–0.7) mm.

(5–)11–15;

laminae 1.5–3.5 × 0.5–0.75 mm.

(3–)5–11(–16);

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

8–22;

corollas 2.5–4.5 mm, lobes 1–1.5 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, outer narrowly ovate to lanceolate (1.5–3 × 0.4–1 mm), unequal, obtuse to acuminate.

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.

60–100, in thyrsiform-paniculiform arrays, sometimes secund apically, (3.5–)6–26(–60) x 4–10(–15) cm, branches ascending to arching.

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

pappi 2.5–3.3 mm.

(narrowly obconic) 1.5–2.5 mm (ribs 5–8, broad, lighter than body), sparsely strigose;

pappi 3–4 mm.

= 18, 36.

= 18.