Flora of North America species comparison

usually 1, usually unbranched distally, moderately to strongly winged, glabrous proximally, glabrous or sparsely hairy distally.

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

glabrous;

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

proximal and mid blades narrowly lanceolate, usually entire, sometimes undulate-serrate;

distal blades lance-linear, usually entire, rarely undulate-serrate.

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.

10–30 cm, sparsely hairy.

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

hemispheric to globoid, 10–18 × 15–25 mm.

hemispheric, 10–17 × 15–27 mm.

13–30, neuter;

corollas yellow, 14–25 × 4–10 mm.

13–30, neuter;

corollas yellow, 15–21 × 5–10 mm.

250–650(–1000+);

corollas yellow, 4.3–5.4 mm, lobes 5.

150–650(–800+);

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

sparsely to moderately hairy.

glabrous or sparsely hairy.

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

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

1.2–1.5 mm, moderately hairy;

pappi of 5–12 deeply lacerate, non-aristate scales 2–3.7 mm.

1–1.5 mm, glabrous;

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

= 32.

= 34.