Flora of North America species comparison

(forming clumps) simple or branched among heads.

(often relatively numerous, clustered in clonal patches) 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.

5–7 pairs, mostly cauline (basal leaves usually withered by flowering);

sessile or subsessile (proximalmost with connate-sheathing bases);

blades lanceolate to lance-elliptic, 5–12(–15) × 1.5–3.5 cm, margins usually entire, rarely denticulate, apices acute to acuminate, faces scabrid-puberulent, sometimes glandular (distal leaves not much reduced).

usually narrowly turbinate, rarely narrowly campanulate.

turbinate-campanulate.

8–16, yellow.

6–15;

corollas yellow.

corollas yellow;

anthers yellow.

6–11;

corollas yellow;

anthers yellow.

9–20, linear to narrowly lanceolate.

11–15(–20), narrow to broadly lanceolate.

1–3(–5).

3–20(–35).

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

pappi stramineous to tawny, bristles subplumose.

brown to black, 3–7 mm, glabrous or sparsely hirsutulous, stipitate-glandular;

pappi stramineous to tawny, bristles barbellate to subplumose.

= 57, 76.

= 57, 76.