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, branched distally, narrowly winged, sparsely hairy proximally, 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.

glabrous or sparsely hairy (basal withered by flowering);

proximal blades lance-linear, usually coarsely or irregularly laciniate;

mid and distal blades lance-linear to linear, entire.

3–10 cm, sparsely to moderately hairy.

2–8 cm, sparsely to moderately hairy.

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

globose to slightly ovoid, 6–11(–13) × 6–11(–13) mm.

usually 8–13, neuter, sometimes 0;

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

8–9, pistillate, fertile;

corollas yellow throughout or red proximally and yellow distally or red throughout, 6–12 × 3–8 mm.

250–500(–700+);

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

150–300(–500+);

corollas yellow-green proximally, brown to purple distally, 2.5–3.2 mm, lobes 5.

(connate proximally) moderately to densely hairy.

moderately hairy.

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

5–50(–100+) per plant, in paniculiform arrays.

1–1.2 mm, moderately hairy;

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

1–1.2 mm, moderately hairy;

pappi of 6(–7) entire, aristate scales 2–2.5 mm.

= 28.

= 28.