Flora of North America species comparison

usually simple, sometimes branched.

simple.

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).

2–3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes);

petiolate (petioles narrowly to broadly winged);

blades elliptic to ovate, 3–8 × 2–4 cm, margins entire or denticulate, apices acute to rounded, faces stipitate-glandular.

broadly campanulate.

campanulate-turbinate.

6–13;

corollas yellow.

6–14;

corollas yellow.

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

10–20, narrowly ovate to lanceolate.

10–16, oblanceolate.

1, or 3–5(–10).

1(–3).

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

pappi white, bristles barbellate.

dark gray, 6–9 mm, stipitate-glandular;

pappi white or tawny, bristles barbellate to subplumose.

= 38, 57, 76, 95, 114.

= 76.