Flora of North America species comparison

1(–6+), erect to ± procumbent, usually simple (usually with single stout leader, sometimes multiple with slender laterals), hispid proximally or throughout.

2–9+, arcuate or decumbent, slender, scapiform, cymosely branched distally, glabrous.

basal and cauline; petiolate (petiole bases clasping);

blades lanceolate or oblanceolate, runcinate or lyrate, 5–30 × 1–4.5 cm, margins pinnately divided to sharply dentate (lobes remote, unequal), apices obtuse or acute, mucronate, faces glabrous or sparsely hispid (hairs yellow; proximal cauline auriculate and clasping).

mostly basal; petiolate;

blades oblanceolate, lyrate, 2.5–25 × 0.5–6 cm, margins pinnately lobed (lateral lobes lanceolate, dentate, acute, terminal lobes usually larger), apices obtuse or acute, faces glabrous.

cylindric to turbinate, 5–8 × 3–6 mm.

cylindric, 8–11 × 3–4 mm.

20–60;

corollas deep yellow (reddish abaxially), 8–12 mm (hairy).

30–60;

corollas light yellow, greenish abaxially, 10–11 mm.

8–16, lanceolate, 6–7 mm (margins scarious), apices acute, abaxial faces stipitate-glandular and glandular setose (setae black, usually in 2 rows), adaxial glabrous.

10–12 (reflexed, medially yellowish) lanceolate (bases keeled, margins dark greenish, sometimes scarious), apices acute (ciliate), abaxial faces tomentulose, adaxial with fine hairs.

of 8, linear, tomentulose or stipitate-glandular bractlets 2–4 mm.

of 10–14, (lax) linear, tomentose or glandular-pubescent bractlets 2–5 mm.

10–15(–30+), in corymbiform arrays.

2–3 (peduncles slender), in cymiform arrays.

brownish yellow, fusiform, 1.5–2.5 mm, apices narrowed (not beaked), ribs 10 (glabrous or scabrous);

pappi white (fluffy), 3–4 mm (scarcely surpassing phyllaries).

pale brown, fusiform, 6–7 mm, beaked, beaks pale (lengths nearly 2 times bodies), ribs 10;

pappi white, 3–4 mm.

= 6.

= 8.