Flora of North America species comparison

1–3(–10), unbranched or sparingly branched distally, weakly to moderately winged, glabrous proximally, glabrous or sparsely hairy distally.

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

glabrous or sparsely hairy;

basal blades oblanceolate to oblong-elliptic, entire;

proximal and mid blades lanceolate to oblong-elliptic, entire;

distal blades linear to lanceolate, entire.

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.

(6–)10–30 cm, sparsely to moderately hairy.

10–30 cm, sparsely hairy.

hemispheric to globoid, 12–20 × (14–)17–22(–25) mm.

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

14–20, pistillate, fertile;

corollas yellow, 13–25 × 5–10(–12) mm.

13–30, neuter;

corollas yellow, 14–25 × 4–10 mm.

250–500(–800+);

corollas yellow proximally, yellow to brown to purple distally, 3–4.4(–4.8) mm, lobes 5.

250–650(–1000+);

corollas yellow, 4.3–5.4 mm, lobes 5.

(connate proximally) moderately to densely hairy.

sparsely to moderately hairy.

1–20 per plant, borne singly or in paniculiform arrays.

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

1.8–2.4 mm, moderately hairy;

pappi of 6–8 entire, aristate scales 1.3–2.2(–2.7) mm.

1.2–1.5 mm, moderately hairy;

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

= 32.

= 32.