Flora of North America species comparison

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

1–10+, ascending-erect, glabrous proximally, usually moderately scabrous-puberulent distally.

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 present at flowering as new rosettes;

basal and proximal cauline often with distal portions withering by flowering, long-petiolate, blades shiny, ± 3-nerved, linear to oblanceolate, (30–)100–250 × (2–)5–15 mm, margins entire or sparsely serrulate, faces glabrous;

mid and distal cauline sessile, blades linear-lanceolate to linear, 15–80 × 1–7 mm, much reduced distally, faces glabrous or scabrous.

2–3 mm, glabrous or sparsely hairy.

usually moderately to densely strigillose, sometimes sparsely so or glabrous;

bracts minute.

3–7 mm.

campanulate, 4.5–6 mm.

8–17;

laminae 5–6.2 × 0.4–0.6 mm.

1–4;

laminae 3–5 × 1–1.5 mm.

10–22;

corollas 3–3.2 mm, lobes 0.5–1.2 mm.

7–13;

corollas 4–5 mm, lobes 0.5–1 mm.

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

in 3–4 series, broadly oblong, unequal, firm, striately nerved, rounded, 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.

20–150+ in compactly corymbiform arrays, sometimes somewhat rounded.

(obconic) 1.1–1.5 mm, moderately strigose;

pappi 3.8–4 mm (slightly clavate).

(dark brown, obconic, full) 2–3 mm (7–10 nerved), glabrous;

pappi 4–5 mm (clavate).

= 18.