Flora of North America species comparison

(forming clumps) simple or branched among heads.

simple (sparsely to moderately hairy, hairs translucent with purple septa).

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.

2–5 pairs, mostly cauline; petiolate (proximal) or sessile;

blades elliptic-oblanceolate, obovate or spatulate, (3–)5–12 × 1.5–3 cm, margins usually entire proximal to mid blade, serrate to dentate distally, apices acute to obtuse or abruptly pointed, faces usually glabrate, sometimes scabrous to sparsely stipitate-glandular.

usually narrowly turbinate, rarely narrowly campanulate.

hemispheric or turbinate-hemispheric (bases moderately villous).

8–16, yellow.

6–17;

corollas yellow (laminae 12–17 mm).

corollas yellow;

anthers yellow.

corollas yellow;

anthers dark purple.

9–20, linear to narrowly lanceolate.

14–24, lanceolate (apices obtuse, tips blunt, callous).

1–3(–5).

1 (erect).

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

pappi stramineous to tawny, bristles subplumose.

brown, 4–5 mm, shortly hispidulous (hairs duplex, apically forked) and stipitate-glandular;

pappi tawny, bristles subplumose.

= 57, 76.

= 38.