Flora of North America species comparison

1–10(–20+), erect or ascending, glabrous throughout or hairy in arrays.

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

rosettes present at flowering;

basal and proximal cauline tapering to long, winged petioles sheathing stems or nearly so, blades narrowly ovate to oblanceolate, 100–400 × 10–60 mm, thick or fleshy, entire, acute, glabrous;

mid to distal cauline usually numerous, sessile, blades lanceolate, 40–60 × 5–10 mm, reduced distally, thick or fleshy, bases sometimes subclasping, margins entire.

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.

2–3 mm, glabrous or sparsely hairy.

2–8 mm, glabrous or sparsely strigose;

bracteoles 0–4.

3–7 mm.

narrowly campanulate, 3–4 mm.

8–17;

laminae 5–6.2 × 0.4–0.6 mm.

(5–)11–15;

laminae 1.5–3.5 × 0.5–0.75 mm.

10–22;

corollas 3–3.2 mm, lobes 0.5–1.2 mm.

8–22;

corollas 2.5–4.5 mm, lobes 1–1.5 mm.

in 3–4 series, unequal, lanceolate, margins ciliate, apices acute.

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

20–500, secund, in paniculiform arrays, secund-pyramidal to broadly club-shaped, sometimes leafy proximally, at least proximal branches spreading-recurved, branches and peduncles bracteolate, bracteoles reduced distally.

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

(obconic) 1.1–1.5 mm, moderately strigose;

pappi 3.8–4 mm (slightly clavate).

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

pappi 3–4 mm.

= 18.