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, erect, stout, branched from bases or beyond, hispid, tomentose, or tomentulose, sometimes stipitate-glandular distally.

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;

blades elliptic, runcinate, (5–)8–20 × 2–5 cm, margins pinnately-lobed to sinuously dentate (lobes broadly lanceolate, often dentate), apices acute or acuminate, faces gray-tomentose, sometimes stipitate-glandular.

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

cylindric, 11–19 × 5–10 mm.

50–70;

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

10–40;

corollas yellow, 18–22 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.

7–13, lanceolate, 12–15 mm, (bases thickened, keeled, margins green, often scarious) apices acute or acuminate, abaxial faces gray-tomentose, sometimes setose (setae black or greenish) or stipitate-glandular, adaxial glabrous or with fine hairs.

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

of 6–8, lanceolate or linear, glabrate to tomentose bractlets 2–6 mm.

10–20, in lax, corymbiform arrays.

2–30, in loose 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.

golden or dark brown, subcylindric, 6–10 mm, apices tapered (not beaked), ribs 10–18, strong and rounded;

pappi yellowish white, 10–12 mm (bristles unequal).

= 8, 16.

= 22, 33, 44, 55, 66, 77, 88.