Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

usually simple, sometimes branched distally.

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.

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.

narrowly campanulate to turbinate.

narrowly turbinate.

(5–)7–17(–20);

corollas yellow.

8–15;

corollas yellow.

corollas yellow;

anthers yellow.

20–90;

corollas yellow;

anthers yellow.

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

8–20, lanceolate to oblanceolate.

(1–)3–10(–20).

1 or 3–5(–9).

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

pappi tawny, bristles subplumose.

dark brown, 5–9 mm, sparsely villous;

pappi white, bristles barbellate.

= 38, 76.