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.

1(–3+), erect to decumbent or prostrate, branched proximally or distally, hispid and/or setose.

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;

blades oblanceolate, runcinate, 3–13 × 1–3 cm, margins denticulate to pinnately lobed (lobes deltate to lanceolate, often sharply serrate, terminal relatively large), apices acute, faces hispid to villous (cauline sessile, blades ovate to lanceolate or linear, runcinate, bases auriculate, margins deeply pinnately lobed, lobes linear).

cylindric to turbinate, 5–8 × 3–6 mm.

cylindric to turbinate, 7–16 × 4–13 mm.

20–60;

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

80–100+;

corollas yellow (usually reddish purple adaxially), 9–16 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.

8–12, lanceolate (bases strongly keeled, enclosing marginal cypselae, margins green), apices acute to attenuate, abaxial faces hispid or setose, adaxial with fine hairs.

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

of 8–10, linear to lanceolate, densely hispid bractlets 2–5 mm (becoming lax).

10–15(–30+), in corymbiform arrays.

3–10+, 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).

(dimorphic) subcylindric, outer stout, 7–9 mm, nearly beakless, inner 12–17 mm, beaks 2–5 mm;

pappi dull white, 3–7 mm.

, biennials, or perennials, 10–50 cm (roots fibrous, shallow).

= 6.

= 10.