Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

simple or branched (prominently ribbed; caudices woody).

4–8(–10) pairs, mostly cauline; usually sessile (sometimes with partly connate-sheathing bases), sometimes petiolate (proximalmost);

blades lance-elliptic, lanceolate, oblanceolate, obovate, or ovate, 4–12(–20) × (1–)2–6(–8) cm, margins subentire to dentate-serrate, apices usually acute, rarely obtuse, faces glabrate to pilose.

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 campanulate to turbinate.

turbinate-campanulate.

(5–)7–17(–20);

corollas yellow.

0.

corollas yellow;

anthers yellow.

30–60;

corollas yellow;

anthers yellow.

8–15(–19), narrowly to broadly lanceolate.

8–19, ovate to broadly lanceolate.

(1–)3–10(–20).

1.

brown, 4–8 mm, sparsely hirsutulous, stipitate-glandular;

pappi tawny, bristles subplumose.

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

pappi white, bristles barbellate.

= 38.