Flora of North America species comparison

1, erect to arcuate or decumbent (green or purple proximally), usually much branched, glabrate to hispid and/or tomentose, sometimes sparsely setose (setae black).

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

basal and cauline;

petiolate (bases clasping);

blades oblanceolate to ovate, often runcinate, 10–35 × 2–8 cm, margins pinnately lobed to toothed (terminal lobes relatively large), apices obtuse or acute, faces usually hirsute (hairs sometimes only on veins) or glabrous (cauline sessile, bases auriculate, clasping, margins ± toothed).

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.

cylindro-campanulate (becoming turbinate or urceolate in fruit), 5–14 × 5–6 mm.

cylindric, 9–17 × 4–7 mm.

50–70;

corollas yellow (reddish abaxially), 6–15 mm.

8–25;

corollas yellow, 18–20 mm.

7–16, (reflexed at maturity) lanceolate, 10–12 mm, (margins green to yellowish), apices obtuse or acute (ciliate), abaxial faces tomentose and often stipitate-glandular, adaxial with fine, appressed hairs.

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 5–12, ovate to linear-lanceolate, glabrous bractlets 3–4 mm (reflexed in fruit, scarious).

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

10–20, in lax, corymbiform arrays.

15–20+, in congested, corymbiform arrays.

(monomorphic or dimorphic) pale brown or yellowish, fusiform, 4–9 mm, outer wider with apices attenuate (not beaked), inner gradually tapered, beaked (beaks 2–5 mm, ± equal to bodies), ribs 10 (narrow);

pappi white (fine, soft), 3–6 mm.

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

pappi whitish or yellowish white, 6–9 mm.

= 8, 16.

= 44, 55, 88.