Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

(often reddish purple) mostly simple.

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.

3–4 pairs, mostly cauline (basal often persistent on sterile rosettes); petiolate (petioles usually narrow, proximalmost sometimes broadly winged);

blades (often reddish purple) usually elliptic to ovate, sometimes subcordate, 1.5–8 × 1.5–4 cm (often relatively thick, nearly succulent), margins usually entire or serrate, sometimes crenate or slightly lobed, apices acute to rounded, faces glabrous or scabrous.

narrowly campanulate to turbinate.

campanulate-turbinate.

(5–)7–17(–20);

corollas yellow.

5–10;

corollas yellow to slightly orange.

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

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

8–14, ovate to broadly lanceolate.

(1–)3–10(–20).

usually 1, sometimes 2–3 (often nodding in bud).

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

pappi tawny, bristles subplumose.

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

pappi white, bristles usually barbellate, sometimes subplumose.

= 38.