Flora of North America species comparison

solitary to densely clumped, simple or branched among heads.

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.

basal petiolate, blades elliptic-lanceolate or oblanceolate, margins subentire, denticulate, or dentate-serrate;

cauline mostly sessile (proximalmost pair petiolate), blades lanceolate to elliptic-lanceolate or oblanceolate, margins subentire, irregularly denticulate, or serrate, faces glabrate to scantily pilose.

narrowly campanulate to turbinate.

(5–)7–17(–20);

corollas yellow.

corollas yellow;

anthers yellow.

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

narrowly to broadly lanceolate.

(1–)3–10(–20).

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

pappi tawny, bristles subplumose.

= 76.