Flora of North America species comparison

mostly simple.

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

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).

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).

campanulate to hemispheric.

turbinate-campanulate.

5–12;

corollas yellow.

6–15;

corollas yellow.

(functionally staminate): corollas yellow;

anthers yellow (styles rarely exserted).

6–11;

corollas yellow;

anthers yellow.

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

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

1–6.

3–20(–35).

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

pappi 0.

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

pappi stramineous to tawny, bristles barbellate to subplumose.

= 38, 76.

= 57, 76.