Flora of North America species comparison

simple or branched.

(branches from rhizomes) simple.

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 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.

turbinate-campanulate.

turbinate-campanulate.

0.

6–10;

corollas yellow.

15–50;

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

8–15, broadly to narrowly lanceolate.

9–15, linear-oblong to narrowly lanceolate.

1, or 3–9(–25).

1–3(–5).

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

pappi white, bristles barbellate.

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

pappi white, bristles barbellate.

= 38, 76.

= 38, 76.