Flora of North America species comparison

1–20(–50+), stout, finely puberulent or scabrous-puberulent at least distally.

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

basal absent at flowering;

cauline sessile to short-petiolate;

blades usually lanceolate-elliptic or ovate, sometimes linear-lanceolate, 30–150 × 5–30 mm, thick and firm, margins entire or few toothed, somewhat to much reduced distally, abaxial faces sometimes resinous and shiny, glabrous or strigillose (hairs mostly 0.1–1.4 mm), adaxial glabrous or scabrous.

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.

mostly 2–15 mm, bracteolate, sparsely to densely short hispid-strigose.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

campanulate, 4.5–7.5 mm.

campanulate, 4.5–5.5 mm.

(5–)7–9;

laminae 3–7 × 1–2 mm.

6–8;

laminae 3–4 × 1–1.5 mm wide.

(8–)10–16;

corollas 4–5 mm, lobes ca. 1–2 mm.

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

in 3–4 series, unequal, linear-lanceolate, acute to attenuate, ± squarrose-tipped, glabrous or moderately strigose, sparsely to moderately stipitate-glandular, sometimes viscid.

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

10–190+ in paniculiform (rarely racemiform) arrays, usually elongate, usually leafy-bracteate, bracts similar to distal leaves but reduced;

branches stiffly ascending, not secund, sometimes elongate.

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.

3–4 mm, glabrous or glabrate;

pappi ca. 4 mm.

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

= 18, 36, 54.