Flora of North America species comparison

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

1–5+, ascending to erect, slender, essentially glabrous;

axillary clusters of small leaves present in distal leaf axils.

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 often withering by flowering, tapering to petiolar bases, blades oblanceolate, largest blades 80–170 × 10–20 mm, margins entire or slightly toothed, ± strongly 3-nerved, apices acute;

mid and distal cauline ascending to erect, blades linear-lanceolate, greatly reduced, becoming bractlike in arrays, less prominently or scarcely 3-nerved, glabrous.

2–3 mm, glabrous or sparsely hairy.

1–3(–5) mm;

bracts linear-lanceolate, 1–3 mm, glabrous.

3–7 mm.

campanulate, 3–5 mm.

8–17;

laminae 5–6.2 × 0.4–0.6 mm.

5–8;

laminae 1–2 × 0.5–0.75 mm.

10–22;

corollas 3–3.2 mm, lobes 0.5–1.2 mm.

3–9;

corollas 3–4 mm, lobes 0.5–0.75 mm.

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

in 3 series, strongly unequal, broadly lanceolate, acute, glabrous.

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.

35–140, in paniculiform arrays, often about as broad as long, branches recurved-secund, often elongate.

(obconic) 1.1–1.5 mm, moderately strigose;

pappi 3.8–4 mm (slightly clavate).

(obconic) 1.5–2 mm, glabrous;

pappi 1.5–2 mm.

= 18.