Flora of North America species comparison

(forming clumps) simple or branched among heads.

(1–3 together) usually simple, rarely branched (moderately to densely 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–)3–5(–6) pairs, usually crowded toward stem bases; petiolate or sessile (petioles short-winged);

blades elliptic, lanceolate, or broadly oblanceolate, 3–10 × 1–2.5 cm, margins usually entire proximal to mid blade, subentire to denticulate distally, apices acute to obtuse, faces: abaxial paler and often glabrous, adaxial slightly hairy.

usually narrowly turbinate, rarely narrowly campanulate.

turbinate-campanulate (bases moderately villous, hairs brownish).

8–16, yellow.

8–13;

corollas yellow (laminae 14–20 mm).

corollas yellow;

anthers yellow.

corollas yellow;

anthers dark purple.

9–20, linear to narrowly lanceolate.

11–15, lanceolate to elliptic (apices obtuse, tips blunt, callous).

1–3(–5).

1 (nodding).

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

pappi stramineous to tawny, bristles subplumose.

brown, 5–6 mm, sparsely strigose (hairs simple, apically pointed) or glabrous;

pappi tawny, bristles barbellate.

= 57, 76.

= 38, 57, 76.