Flora of North America species comparison

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

1–5+, ascending to erect, glabrous or moderately hairy 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.

rosettes present at flowering, often in large numbers;

basal and proximal cauline tapering to long-winged petioles, blades oblanceolate to elongate-elliptic, 140–300 (including petioles) × 33–63 mm, gradually reduced distally, somewhat fleshy-rubbery (fresh), margins serrate (teeth 8–18), apices acuminate, abaxial faces glabrous, adaxial glabrous or sparsely strigose;

mid to distal cauline sessile, blades narrowly lanceolate, 35–72 × 9–16 mm, gradually reduced into arrays, tapering to bases, margins entire to slightly serrate, apices acuminate, faces glabrous or sparsely hairy.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

5–12 mm, glabrate to sparsely strigose;

bracteoles 0(–1).

campanulate, 4.5–5.5 mm.

campanulate, 10–11 mm.

6–8;

laminae 3–4 × 1–1.5 mm wide.

6–13;

laminae 3.3–5 × (1.5–)2–3(–3.5) mm.

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

12–29;

corollas 3.7–5.1 mm, lobes 1.5–2.3 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, outermost ovate, 2.3–3.6 mm, 1-nerved, apices obtuse to acute, innermost linear-oblong, 1–3-nerved (on at least some involucres), apices obtuse to blunt.

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.

20–230 (1–10 per branch), in leafy, short, axillary and terminal, racemo-paniculiform clusters 8–41(–47) cm.

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

(obconic) 2–2.6 mm, glabrous or sparsely strigose;

pappi 4.8–5.7 mm.

= 108, 126.