Flora of North America species comparison

1–3(–5), erect, branched (branches strict with relatively few secondary branches), sparsely to densely tomentulose.

basal and cauline; petiolate (petiole bases broadened, clasping);

blades elliptic-lanceolate, 10–40 × 2–7 cm, margins deeply pinnately lobed (lobes mostly lanceolate or falcate, usually entire, rarely with 1–2 teeth), apices attentuate, faces tomentose or glabrate, sometimes setose.

cylindric, 9–17 × 4–7 mm.

8–25;

corollas yellow, 18–20 mm.

6–10, lanceolate, 12–15 mm (margins yellowish, scarious), apices acute, abaxial faces tomentulose and coarsely green-setose, adaxial glabrous or with fine hairs.

of 5–7, lanceolate, green-setose bractlets 2–5 mm.

15–20+, in congested, corymbiform arrays.

dark brown to olive, subcylindric, 8–9 mm, apices tapered, ribs 10–12 (strong);

pappi whitish or yellowish white, 6–9 mm.

= 44, 55, 88.