Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

simple or branched.

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.

3–5 pairs, sometimes crowded toward bases (basal leaves often persistent on sterile rosettes); petiolate (petioles mostly broadly winged, 1–9 × 0.2–1.5 cm);

blades elliptic-ovate to spatulate, 2–8 × 1–4 cm, margins subentire to mostly irregularly dentate, apices acute, faces sparsely to densely villous, stipitate-glandular.

narrowly campanulate to turbinate.

turbinate-campanulate.

(5–)7–17(–20);

corollas yellow.

0.

corollas yellow;

anthers yellow.

15–50;

corollas yellow;

anthers yellow.

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

8–15, broadly to narrowly lanceolate.

(1–)3–10(–20).

1, or 3–9(–25).

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

pappi tawny, bristles subplumose.

black, 5–10 mm, sparsely stipitate-glandular;

pappi white, bristles barbellate.

= 38, 76.