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.

usually 1, erect, branched from middles or distally, densely hispidulous proximally.

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).

basal and cauline;

petiolate (petioles winged, bases clasping);

blades oblanceolate, runcinate, 16–19 × 2–4 cm, margins pinnately lobed, dentate, or finely denticulate, apices obtuse, faces finely hispidulous (hairs yellowish).

cylindric to turbinate, 5–8 × 3–6 mm.

campanulate, 8–10 × 4–6 mm.

20–60;

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

50–60;

corollas yellow (sometimes reddish distally), 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.

10–15, lanceolate (strongly tapered), 7–8 mm (bases strongly keeled, partly enclosing marginal cypselae, margins scarious), apices obtuse (ciliate), abaxial faces glabrous or glabrate, adaxial glabrous.

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

of 7–9, linear, glabrous or glabrate bractlets 3–6 mm.

10–15(–30+), in corymbiform arrays.

2–15, in corymbiform 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).

golden brown, fusiform, 2.5–4 mm, ribs 10 (broad);

pappi bright white, 4–5 mm.

= 6.

= 8.