Flora of North America species comparison

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

1 usually, erect, round, proximally glabrous, strigose in arrays.

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.

basal and proximal cauline tapering abruptly to winged, thin petioles, blades broadly ovate, 100–300 × 30–100 mm, margins sharply serrate, apices acute to acuminate, adaxial faces glabrous or slightly scabrous, or sometimes strigose or strigillose;

mid to distal cauline sessile, lanceolate, 50–72 × 10–14 mm, reduced distally, becoming entire.

2–3 mm, glabrous or sparsely hairy.

1.5–3 mm, glabrous or moderately short hispido-strigose, bracteoles 1–5, lanceolate-oblong, often grading into phyllaries.

3–7 mm.

2.5–4.5(–5) mm.

8–17;

laminae 5–6.2 × 0.4–0.6 mm.

2–8;

laminae 4–4.5 × 0.4–0.6 mm.

10–22;

corollas 3–3.2 mm, lobes 0.5–1.2 mm.

8–20;

corollas 3.5–4 mm, lobes 0.6–1.5 mm.

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

in 3–4 series, unequal;

outer ovate, acute, inner linear-oblong, ciliate, obtuse.

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.

25–250, secund, in open, leafy, paniculiform arrays with recurved branches (sometimes elongate), branches and peduncles hairy.

(obconic) 1.1–1.5 mm, moderately strigose;

pappi 3.8–4 mm (slightly clavate).

1.5–2 mm, distinctly ridged, glabrous or strigose distally;

pappi 3–3.5 mm.