Flora of North America species comparison

usually simple, sometimes branched distally.

simple or branched (prominently ribbed; caudices woody).

2–4(–6) pairs, cauline (basal leaves often persistent on sterile rosettes), petiolate (proximal, petioles relatively short, broadly winged) or sessile (mid and distal);

blades lance-elliptic to ovate, 2–10 × 1–6 cm, margins serrate to dentate, apices obtuse to acute, faces glabrous or sparsely villous.

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.

narrowly turbinate.

turbinate-campanulate.

8–15;

corollas yellow.

0.

20–90;

corollas yellow;

anthers yellow.

30–60;

corollas yellow;

anthers yellow.

8–20, lanceolate to oblanceolate.

8–19, ovate to broadly lanceolate.

1 or 3–5(–9).

1.

dark brown, 5–9 mm, sparsely villous;

pappi white, bristles barbellate.

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

pappi white, bristles barbellate.

= 38, 76.

= 38.