Flora of North America species comparison

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

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

glabrous or sparsely to moderately hairy;

basal blades oblanceolate to obovate or spatulate, entire or serrate;

proximal and mid blades oblanceolate to lanceolate, entire or toothed;

distal blades lanceolate to lance-linear, entire.

usually glabrous, rarely sparsely hairy;

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

proximal and mid blades linear-oblanceolate to lance-linear, entire or undulate-serrate;

distal blades lance-linear, entire.

3–10 cm, sparsely to moderately hairy.

3–20 cm, moderately to densely hairy.

globoid to usually ovoid, 8–17 × 9–17 mm.

hemispheric, 12–20 × 15–30 mm.

usually 8–13, neuter, sometimes 0;

corollas yellow to reddish brown to red to purple, 10–20 × 5–10 mm.

13–34, neuter;

corollas yellow, 15–22 × 5–8 mm.

250–500(–700+);

corollas yellow proximally and purple distally or purple throughout, 2.3–3.7 mm, lobes 4(–5).

250–650(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 4–5.5 mm, lobes 5.

(connate proximally) moderately to densely hairy.

moderately hairy.

(1–)5–50(–80+) per plant, in paniculiform arrays.

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

1–1.2 mm, moderately hairy;

pappi of 5–6 entire, aristate scales 0.6–1(–1.7) mm.

1.2–1.4 mm, moderately hairy;

pappi of 8–11 entire or slightly lacerate, non-aristate scales 1.2–1.5 mm.

= 28.

= 32, 34.