Flora of North America species comparison

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

usually 1, erect, glabrous, sparsely hairy 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 when present similar to proximal cauline;

proximal cauline often withering by flowering, tapering (sometimes rather abruptly) to short, winged petioles, blades ovate-lanceolate, 60–100(–150) × 30–40(–50) mm, thin, margins coarsely serrate, apices acute, abaxial faces hirsute on main nerves, adaxial sparsely hirsute to somewhat scabrous;

mid to distal cauline subsessile to sessile, blades lanceolate, 20–50 × 5–20 mm, gradually reduced distally, margins entire.

2–3 mm, glabrous or sparsely hairy.

1.7–2 mm, sparsely to moderately short hispido-strigose, bracteoles 2–7, ovate, grading into phyllaries.

3–7 mm.

3–4 mm.

8–17;

laminae 5–6.2 × 0.4–0.6 mm.

3–6;

laminae 1–2 × 0.5–1 mm.

10–22;

corollas 3–3.2 mm, lobes 0.5–1.2 mm.

4–7;

corollas 2.7–3 mm, lobes 0.5–1.1 mm.

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

(16–18) in 2–3 series, unequal;

outer ovate, acute, inner linear-lanceolate, obtuse to acute.

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.

20–150, secund, in open paniculiform arrays, proximal branches elongate and widely divergent, sometimes pyramidal-secund with proximal branches short and recurved-secund.

(obconic) 1.1–1.5 mm, moderately strigose;

pappi 3.8–4 mm (slightly clavate).

1–1.6 mm, finely hairy;

pappi ± 2.5 mm.