Flora of North America species comparison

usually simple, sometimes branched.

(often relatively numerous, clustered in clonal patches) 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).

5–7 pairs, mostly cauline (basal leaves usually withered by flowering);

sessile or subsessile (proximalmost with connate-sheathing bases);

blades lanceolate to lance-elliptic, 5–12(–15) × 1.5–3.5 cm, margins usually entire, rarely denticulate, apices acute to acuminate, faces scabrid-puberulent, sometimes glandular (distal leaves not much reduced).

broadly campanulate.

turbinate-campanulate.

6–13;

corollas yellow.

6–15;

corollas yellow.

corollas yellow;

anthers yellow.

6–11;

corollas yellow;

anthers yellow.

10–20, narrowly ovate to lanceolate.

11–15(–20), narrow to broadly lanceolate.

1, or 3–5(–10).

3–20(–35).

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

pappi white, bristles barbellate.

brown to black, 3–7 mm, glabrous or sparsely hirsutulous, stipitate-glandular;

pappi stramineous to tawny, bristles barbellate to subplumose.

= 38, 57, 76, 95, 114.

= 57, 76.