Flora of North America species comparison

mostly simple.

simple or branched.

3–8 pairs, mostly crowded toward bases; petiolate (at least proximal);

blades elliptic to oblanceolate or obovate, 5–10 × 0.5–3.5 cm, margins entire, apices acute, faces densely hairy (hairs relatively short, curly) and sessile-glandular (distal leaves sessile, much reduced).

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.

campanulate to hemispheric.

turbinate-campanulate.

5–12;

corollas yellow.

0.

(functionally staminate): corollas yellow;

anthers yellow (styles rarely exserted).

15–50;

corollas yellow;

anthers yellow.

5–12 (in 1 series), oblong or elliptic.

8–15, broadly to narrowly lanceolate.

1–6.

1, or 3–9(–25).

brown to black, 4–10 mm, sparsely to densely hirsute (hairs usually simple, rarely duplex) and sparsely stipitate-glandular;

pappi 0.

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

pappi white, bristles barbellate.

= 38, 76.

= 38, 76.