Flora of North America species comparison

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

1–5+, ascending to erect, slender, essentially glabrous;

axillary clusters of small leaves present in distal leaf axils.

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 often withering by flowering, tapering to petiolar bases, blades oblanceolate, largest blades 80–170 × 10–20 mm, margins entire or slightly toothed, ± strongly 3-nerved, apices acute;

mid and distal cauline ascending to erect, blades linear-lanceolate, greatly reduced, becoming bractlike in arrays, less prominently or scarcely 3-nerved, glabrous.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

1–3(–5) mm;

bracts linear-lanceolate, 1–3 mm, glabrous.

campanulate, 4.5–5.5 mm.

campanulate, 3–5 mm.

6–8;

laminae 3–4 × 1–1.5 mm wide.

5–8;

laminae 1–2 × 0.5–0.75 mm.

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

3–9;

corollas 3–4 mm, lobes 0.5–0.75 mm.

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

in 3 series, strongly unequal, broadly lanceolate, acute, glabrous.

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.

35–140, in paniculiform arrays, often about as broad as long, branches recurved-secund, often elongate.

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

(obconic) 1.5–2 mm, glabrous;

pappi 1.5–2 mm.

= 18.