Flora of North America species comparison

usually 1–3, ascending to erect, scabrous to loosely puberulent.

1–20, erect, finely scabroso-puberulent, sparsely so with age proximally, densely so distally.

basal and proximal usually withering by flowering, tapering to long-winged petioles, blades oblanceolate, 30–100 × 7–20(–30) mm, margins serrate or crenate, mid usually largest, apices acute to obtuse, acuminate, faces scabrous;

mid and distal cauline subsessile (1 mm) or sessile, blades (sometimes ± shiny) elliptic to oblanceolate, 10–50 × 5–15(–25) mm, greatly reduced distally, grading into bracts, firm, bases convex-cuneate to rounded, margins finely serrate, often 3-nerved, nerves usually distinct abaxially, faces distinctly scabrous.

basal and proximal cauline withering by flowering, subsessile, gradually tapering to short-winged petiole-like bases;

mid and distal cauline sessile, blades linear-elliptic to linear-lanceolate, 40–90 × 4–5 mm, 3-nerved from base, midnerves prominent, margins entire, finely scabrous, apices attenuate-acute, faces finely, sparsely to moderately strigose, more so on main nerves, finer nerves translucent, faces sometimes shiny.

0.5–2 mm;

bracteoles 1–5, linear-lanceolate to ovate, minute, grading into phyllaries distally.

2–6 mm, finely strigose;

bracteoles 1–10, often crowded, linear-lanceolate, 2–3 mm, grading into phyllaries.

narrowly campanulate, 3–5 mm.

narrowly campanulate, 3.5–4 mm.

4–7;

laminae 2–3.5 × 0.2–0.7 mm.

4–5;

laminae 1.5–2.5 × 0.5 mm.

4–6;

corollas 3 mm, lobes 1 mm.

6–8, 3–3.5 mm, lobes 0.5 mm.

in 3–4 series, unequal, oblong, midnerves swollen distally, obtuse or acute to slightly acuminate.

in 3–4 series, linear-lanceolate, strongly unequal, margins hyaline, distally subulate-ciliate, apices acute, glabrous.

20–260, in paniculiform arrays, narrowly to broadly secund, pyramidal, branches recurved, secund.

25–350, in short to elongate, secund paniculiform arrays, branches ascending or ascending and distally recurved, sometimes second, sometimes elongate.

1.5–2.5 mm, sparsely to moderately short-strigose;

pappi 3 mm.

(narrowly obconic) 1.5–2.5 mm, sparsely strigillose;

pappi 3 mm.

= 18, 36.

= 18.