Flora of North America species comparison

1–5, sparsely to moderately strigoso-puberulent.

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

basal petioles 3–5 cm, blades oblanceolate or spatulate to ovate or rotund, 2–4 cm (excluding petioles);

cauline (numerous) subsessile or sessile, blades elliptic or lance-elliptic to ovate, mid mostly 25–50(–65) × 10–25 mm, distal much reduced;

branch leaf petioles 1 mm, blades ovate, 5–15 (excluding petioles) × 2–10 mm.

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.

linear, 1–3 mm, bracteate.

1–4 mm, bracteolate.

narrowly campanulate, 3–5 mm.

campanulate, 4–6 mm.

0(–2).

6–9;

laminae 2–3 × 1–1.5 mm.

4–8;

corollas 3 mm, lobes 1 mm.

mostly 8–12;

corollas 4–4.5 mm, lobes 1–1.5 mm.

in 3–4 series, lanceolate, strongly unequal, margins ciliate, apices acute, glabrous.

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.

75–200 in open paniculiform arrays, branches divaricate, ascending to recurved, weakly to strongly secund, to 50 cm, secondary branches less than 3 cm.

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

2.5–3 mm, moderately short-strigose;

pappi 2 mm.

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

pappi 1.5–2.5 mm.

= 18.

= 18.