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, erect, slender to robust, branched proximally or near middles, ± setulose or glabrescent.

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 (at least basal);

blades oblanceolate to runcinate, 5–25 × 1.5–7.5 cm, margins pinnately lobed or dentate (terminal lobes triangular), apices ± acute, faces slightly scabrous (hairs yellow, fine).

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

campanulate, 8–13 × 5–9 mm.

50–70;

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

30–100;

corollas yellow, 12–18 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.

10–17 (pale to dark green or nearly black) linear-lanceolate, 10–11 mm, (margins scarious) apices acute to obtuse (ciliate), abaxial faces ± canescent-tomentose, adaxial often with yellowish or black, appressed hairs.

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

of 7–9, lance-linear, glabrous or tomentulose bractlets 3–6 mm.

10–20, in lax, corymbiform arrays.

12–14, in simple or compound, 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.

yellowish or reddish brown, fusiform, 4–7 mm, apices narrowed (not beaked), ribs 13–20;

pappi white, 5–7 mm (somewhat unequal).

= 8, 16.

= 40.