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, sparingly branched distally, weakly winged, glabrous or sparsely hairy.

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;

blades all lance-linear, entire or coarsely toothed.

3–10 cm, sparsely to moderately hairy.

4–13 cm, glabrous or sparsely to moderately hairy.

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

globoid to ovoid, 11–16 × 14–20 mm.

usually 8–13, neuter, sometimes 0;

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

12–18, pistillate, fertile;

corollas usually yellow, sometimes yellow with purple streaks, 10–20 × 5–13 mm.

250–500(–700+);

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

300–500(–700+);

corollas yellow proximally, yellow to purple to dark blue-purple distally, 3.2–3.6 mm, lobes 5.

(connate proximally) moderately to densely hairy.

sparsely to densely hairy.

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

1–15(–25) per plant, in paniculiform arrays.

1–1.2 mm, moderately hairy;

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

2–2.9 mm, moderately hairy;

pappi of 6–7 entire, aristate scales 1.5–2 mm.

= 28.

= 30.