Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

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.

2–3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes); petiolate (petioles narrowly to broadly winged);

blades elliptic to ovate, 3–8 × 2–4 cm, margins entire or denticulate, apices acute to rounded, faces stipitate-glandular.

narrowly campanulate to turbinate.

campanulate-turbinate.

(5–)7–17(–20);

corollas yellow.

6–14;

corollas yellow.

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

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

10–16, oblanceolate.

(1–)3–10(–20).

1(–3).

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

pappi tawny, bristles subplumose.

dark gray, 6–9 mm, stipitate-glandular;

pappi white or tawny, bristles barbellate to subplumose.

= 76.