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).

1–3 pairs, mostly cauline (shorter plants often with leaves crowed mostly toward bases);

petiolate;

blades elliptic, oblong, or ovate-lanceolate, 1.5–7.5 × 0.5–2 cm, margins usually entire, rarely denticulate or slightly undulate, apices usually obtuse, sometimes acute or acuminate, faces glabrous or hispidulous-puberulent, ± densely stipitate-glandular.

broadly campanulate.

campanulate-turbinate.

6–13;

corollas yellow.

7–10;

corollas yellow.

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

10–20, narrowly ovate to lanceolate.

10–20, narrowly lanceolate (stipitate-glandular).

1, or 3–5(–10).

usually 1, sometimes 2–3 (nodding at flowering).

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

pappi white, bristles barbellate.

brown, 3–5 mm, abaxially glabrous, adaxially sparsely hirsute or glabrous throughout, usually stipitate-glandular toward apices, sometimes densely stipitate-glandular throughout;

pappi white, bristles barbellate.

= 38, 57, 76, 95, 114.

= 76, 95.