Flora of North America species comparison

usually simple, sometimes branched distally.

usually simple, sometimes branched.

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, mostly cauline (basal often persistent on sterile rosettes); petiolate;

blades cordate or subcordate to ovate, 3–10 × 2–10 cm, margins dentate to coarsely dentate, apices acute to rounded, faces puberulent to sparsely villous, sometimes stipitate-glandular (especially adaxial).

narrowly turbinate.

broadly campanulate.

8–15;

corollas yellow.

6–13;

corollas yellow.

20–90;

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

8–20, lanceolate to oblanceolate.

10–20, narrowly ovate to lanceolate.

1 or 3–5(–9).

1, or 3–5(–10).

dark brown, 5–9 mm, sparsely villous;

pappi white, bristles barbellate.

dark gray, 5–10 mm, sparsely to densely hirsute (hairs duplex), sometimes stipitate-glandular as well;

pappi white, bristles barbellate.

= 38, 76.

= 38, 57, 76, 95, 114.