Flora of North America species comparison

simple or branched.

usually simple, sometimes branched distally.

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.

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.

turbinate-campanulate.

narrowly turbinate.

0.

8–15;

corollas yellow.

15–50;

corollas yellow;

anthers yellow.

20–90;

corollas yellow;

anthers yellow.

8–15, broadly to narrowly lanceolate.

8–20, lanceolate to oblanceolate.

1, or 3–9(–25).

1 or 3–5(–9).

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

pappi white, bristles barbellate.

dark brown, 5–9 mm, sparsely villous;

pappi white, bristles barbellate.

= 38, 76.

= 38, 76.