Flora of North America species comparison

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

usually single, glabrous proximally, hirsuto-puberulent in arrays, sometimes irregularly or decurrently so proximally.

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.

proximalmost withering, smaller;

basal and proximal cauline tapering to winged petioles, blades elliptic to elliptic-obovate or subrhombic, mostly 60–150 × 10–50 mm, margins serrate, usually acuminate, glabrous or scabrellous distally;

mid and distal cauline sessile, blades mostly rhombic-elliptic to narrowly lanceolate, 20–40 × 5–8 mm.

1–6 mm, moderately canescent;

bracteoles linear to lanceolate.

1–4 mm, bracteolate.

campanulate, 4.5–5.5 mm.

campanulate, 4–6 mm.

6–8;

laminae 3–4 × 1–1.5 mm wide.

6–9;

laminae 2–3 × 1–1.5 mm.

8–14;

corollas 4–5 mm, lobes ca. 1.5 mm.

mostly 8–12;

corollas 4–4.5 mm, lobes 1–1.5 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, appressed, unequal (outer 1/2 length of inner), linear to lanceolate-deltate (inner series usually striate with 2 prominent secondary nerves), apices narrowly acute or minutely 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.

50–250, in elongate, narrowly paniculiform arrays, leafy-bracteate proximally, not secund, proximal branches sometimes elongated and ascending.

(reddish brown) 2–3 mm, glabrous;

pappi 4–5 mm.

(tan) 1.75–2.5 mm, usually glabrous, sometimes sparsely strigose;

pappi 1.5–2.5 mm.

= 18.