Flora of North America species comparison

usually simple, sometimes branched distally.

simple.

2–4(–6) pairs, cauline (basal leaves often persistent on sterile rosettes), petiolate (proximal, petioles relatively short, broadly winged) or sessile (mid and distal);

blades lance-elliptic to ovate, 2–10 × 1–6 cm, margins serrate to dentate, apices obtuse to acute, faces glabrous or sparsely villous.

2–4(–6) pairs, nearly all basal;

sessile;

blades (with 3, 5, or 7 prominent, subparallel veins) broadly elliptic, ovate, or rhombic, 4–15 × 1.5–8 cm, margins mostly entire, apices mostly obtuse, faces hirsute and stipitate-glandular (cauline leaves 0 or 1–2, distalmost often alternate, much reduced).

narrowly turbinate.

campanulate.

8–15;

corollas yellow.

10–16;

corollas yellow.

20–90;

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

8–20, lanceolate to oblanceolate.

12–18, narrowly ovate.

1 or 3–5(–9).

3–20.

dark brown, 5–9 mm, sparsely villous;

pappi white, bristles barbellate.

dark gray to dark brown, 5–7 mm, glabrous or sparsely stipitate-glandular;

pappi white, bristles barbellate.

= 38, 76.

= 38.