Flora of North America species comparison

(forming clumps) simple or branched among heads.

branched (prominently ribbed, strongly stipitate-glandular; caudices woody).

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.

5–10 pairs (main stems, 2–6 pairs on branches; basal withered by flowering), cauline;

sessile;

blades obovate-oblong to ovate-oblong, (1–)2–4(–5) × 1–3 cm, margins ± entire, apices acute, faces sparsely to densely pilose, densely stipitate-glandular.

usually narrowly turbinate, rarely narrowly campanulate.

narrowly turbinate.

8–16, yellow.

0.

corollas yellow;

anthers yellow.

10–30;

corollas cream;

anthers yellow.

9–20, linear to narrowly lanceolate.

10–20, broadly lanceolate (stipitate-glandular).

1–3(–5).

10–20.

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

pappi stramineous to tawny, bristles subplumose.

dark gray, 4.5–6.5 mm, stipitate-glandular;

pappi usually white, rarely tawny, bristles barbellate to subplumose.

= 57, 76.

= 38.