Flora of North America species comparison

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

usually 1, erect, glabrous, short hispido-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 to long petioles that partially sheath stems;

blades oblanceolate, 100–350 × 5–60 mm, margins subentire to serrate, apices acute;

mid to distal sessile, not sheathing stems, blades lanceolate, 20–50 × 5–10 mm, much reduced distally, margins entire.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

1–4 mm, glabrous or sparsely strigose.

campanulate, 4.5–5.5 mm.

3–5 mm.

6–8;

laminae 3–4 × 1–1.5 mm wide.

1–8 (moderately conspicuous);

laminae 3.2–3.7 × 0.4–0.6 mm.

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

6–8;

corollas 4.6–5 mm, lobes 0.6–1 mm.

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

(14–18) in 3–5 series, unequal, usually apically ciliate;

outer ovate, acute, inner linear-oblong, 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.

35–230 in elongate paniculiform arrays, sometimes narrow and secund pyramidal, usually narrowly to broadly, non-secund thyrsiform;

branches strongly ascending with non-secund heads to arching with heads secund.

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

1–2 mm, glabrous or sparsely strigillose;

pappi 2.7–3 mm (weakly clavate).

= 18, 36.