Flora of North America species comparison

usually simple, sometimes branched distally.

(branches from rhizomes) simple.

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.

2–4 pairs (basal often persistent on sterile rosettes), mostly cauline; petiolate (at least basal) or sessile;

blades oblanceolate to spatulate, 2–7 × 0.5–2.5 cm, margins usually entire, sometimes denticulate, rarely dentate, apices usually acute, sometimes obtuse, faces sparsely puberulent, moderately pubescent distally, stipitate-glandular.

narrowly turbinate.

turbinate-campanulate.

8–15;

corollas yellow.

6–10;

corollas yellow.

20–90;

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

8–20, lanceolate to oblanceolate.

9–15, linear-oblong to narrowly lanceolate.

1 or 3–5(–9).

1–3(–5).

dark brown, 5–9 mm, sparsely villous;

pappi white, bristles barbellate.

brown, 4–7 mm, densely hirsute (not stipitate-glandular);

pappi white, bristles barbellate.

= 38, 76.

= 38, 76.