Flora of North America species comparison

(forming clumps) simple or branched among heads.

(often reddish purple) mostly simple.

2–3(–4) pairs (basal 1–2 pairs usually withered by flowering, petiolate, petioles broadly winged, blades round-ovate, relatively small; sterile rosettes lacking), mostly cauline; petiolate (at least middle pair, petioles broadly to narrowly winged);

blades broadly deltate to ovate, 4–8 × 2–6 cm (middle pair largest), margins irregularly denticulate to coarsely dentate-serrate, apices acute, faces puberulent (hairs minute) and stipitate-glandular.

3–4 pairs, mostly cauline (basal often persistent on sterile rosettes); petiolate (petioles usually narrow, proximalmost sometimes broadly winged);

blades (often reddish purple) usually elliptic to ovate, sometimes subcordate, 1.5–8 × 1.5–4 cm (often relatively thick, nearly succulent), margins usually entire or serrate, sometimes crenate or slightly lobed, apices acute to rounded, faces glabrous or scabrous.

usually narrowly turbinate, rarely narrowly campanulate.

campanulate-turbinate.

8–16, yellow.

5–10;

corollas yellow to slightly orange.

corollas yellow;

anthers yellow.

corollas yellow;

anthers yellow.

9–20, linear to narrowly lanceolate.

8–14, ovate to broadly lanceolate.

1–3(–5).

usually 1, sometimes 2–3 (often nodding in bud).

brown to black, 5–7 mm, sparsely to moderately pilose and stipitate-glandular;

pappi stramineous to tawny, bristles subplumose.

dark gray, 6–8 mm, sparsely to densely hirsute (hairs duplex);

pappi white, bristles usually barbellate, sometimes subplumose.

= 57, 76.

= 38.