Flora of North America species comparison

usually 1, usually unbranched distally, weakly winged, glabrous proximally, glabrous or sparsely hairy distally.

usually glabrous, rarely sparsely hairy;

basal blades obovate to narrowly oblanceolate, usually entire or undulate to undulate-serrate;

proximal and mid blades usually narrowly lanceolate to narrowly oblanceolate, usually entire, sometimes toothed;

distal blades lance-linear, entire.

2–23 cm, usually glabrous, sometimes sparsely hairy.

hemispheric, 10–17 × 15–27 mm.

13–30, neuter;

corollas yellow, 15–21 × 5–10 mm.

150–650(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 4.6–6 mm, lobes 5.

glabrous or sparsely hairy.

1(–3) per plant, usually borne singly.

1–1.5 mm, glabrous;

pappi of usually 8 entire or lacerate, non-aristate scales 1.5–2 mm.

= 34.