Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

(often relatively numerous, clustered in clonal patches) simple.

4–8(–10) pairs, mostly cauline; usually sessile (sometimes with partly connate-sheathing bases), sometimes petiolate (proximalmost);

blades lance-elliptic, lanceolate, oblanceolate, obovate, or ovate, 4–12(–20) × (1–)2–6(–8) cm, margins subentire to dentate-serrate, apices usually acute, rarely obtuse, faces glabrate to pilose.

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).

narrowly campanulate to turbinate.

turbinate-campanulate.

(5–)7–17(–20);

corollas yellow.

6–15;

corollas yellow.

corollas yellow;

anthers yellow.

6–11;

corollas yellow;

anthers yellow.

8–15(–19), narrowly to broadly lanceolate.

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

(1–)3–10(–20).

3–20(–35).

brown, 4–8 mm, sparsely hirsutulous, stipitate-glandular;

pappi 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.