Flora of North America species comparison

1–5+, sparsely to moderately short strigose or villous.

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

basal withering by flowering, petiolate, smaller to much smaller than cauline, blades oblanceolate, margins serrate;

cauline sessile, blades elliptic-lanceolate or -oblanceolate, mid 80–140 × 2.5–4 mm, distally reduced, usually membranous, bases tapering, attenuate, margins sharply toothed along much of length to nearly entire, ciliate, abaxial faces short-pilose along small and large nerves, adaxial short-pilose along larger nerves.

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.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

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

campanulate, 4.5–5.5 mm.

2.5–4.5(–5) mm.

6–8;

laminae 3–4 × 1–1.5 mm wide.

2–8;

laminae 4–4.5 × 0.4–0.6 mm.

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

8–20;

corollas 3.5–4 mm, lobes 0.6–1.5 mm.

in ca. 3 series, strongly unequal, erect to slightly squarrose-tipped, lanceolate, apices acute, glabrate, sparsely to moderately, finely stipitate-glandular.

in 3–4 series, unequal;

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

5–160 (2–10+ more per short branch cluster), in narrowly elongate paniculiform arrays, branches usually 1–6 cm (much longer in damaged plants, sometimes 1–3 proximal branches much elongated in undamaged plants), ascending and bearing short terminal racemiform or paniculiform clusters.

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

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

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

pappi 3–3.5 mm.