Flora of North America species comparison

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

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 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.

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.

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

bracteoles linear- lanceolate to ovate.

2–8 mm, glabrous or sparsely strigose;

bracteoles 0–4.

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

narrowly campanulate, 3–4 mm.

(4–)6–8(–12);

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

(5–)11–15;

laminae 1.5–3.5 × 0.5–0.75 mm.

(2–)4–6(–8);

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

8–22;

corollas 2.5–4.5 mm, lobes 1–1.5 mm.

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

in 3–4 series, outer narrowly ovate to lanceolate (1.5–3 × 0.4–1 mm), unequal, obtuse to acuminate.

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.

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) 0.9–1.5 mm, moderately strigillose;

pappi 1.8–2.5 mm.

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

pappi 3–4 mm.

= 18.