Flora of North America species comparison

usually simple, sometimes branched.

simple or branched (prominently ribbed; caudices woody).

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).

6–10 pairs, cauline (basal leaves withered by flowering; proximal cauline scalelike, middle leaves largest, distal reduced, bractlike) usually broadly sessile, rarely broadly petiolate;

blades (3- or 5-nerved, strongly reticulate-veined) ovate-elliptic to broadly lanceolate, 3–7 × 1.5–4 cm (firm), margins irregularly and coarsely serrate, apices acute to obtuse, faces: abaxial pilose, stipitate-glandular (especially on veins), adaxial glabrate to stipitate-glandular.

broadly campanulate.

turbinate-campanulate.

6–13;

corollas yellow.

0.

corollas yellow;

anthers yellow.

30–60;

corollas yellow;

anthers yellow.

10–20, narrowly ovate to lanceolate.

8–19, ovate to broadly lanceolate.

1, or 3–5(–10).

1.

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

pappi white, bristles barbellate.

dark gray, 6–8 mm, densely hirsute (hairs duplex);

pappi white, bristles barbellate.

= 38, 57, 76, 95, 114.

= 38.