Flora of North America species comparison

usually simple, sometimes branched.

simple or branched.

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).

3–5 pairs, sometimes crowded toward bases (basal leaves often persistent on sterile rosettes);

petiolate (petioles mostly broadly winged, 1–9 × 0.2–1.5 cm);

blades elliptic-ovate to spatulate, 2–8 × 1–4 cm, margins subentire to mostly irregularly dentate, apices acute, faces sparsely to densely villous, stipitate-glandular.

broadly campanulate.

turbinate-campanulate.

6–13;

corollas yellow.

0.

corollas yellow;

anthers yellow.

15–50;

corollas yellow;

anthers yellow.

10–20, narrowly ovate to lanceolate.

8–15, broadly to narrowly lanceolate.

1, or 3–5(–10).

1, or 3–9(–25).

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

pappi white, bristles barbellate.

black, 5–10 mm, sparsely stipitate-glandular;

pappi white, bristles barbellate.

= 38, 57, 76, 95, 114.

= 38, 76.