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, strongly winged, glabrous proximally, sparsely 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 blades oblanceolate to oblong-elliptic, entire;

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

distal blades lance-linear, entire.

3–10 cm, sparsely to moderately hairy.

(6–)9–17(–23) cm, sparsely to moderately hairy.

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

globose to depressed globose, 9–15 × 9–17(–19) mm.

usually 8–13, neuter, sometimes 0;

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

0, or 13–15, pistillate, fertile;

corollas yellow, 3.8–10 × 2–4 mm.

250–500(–700+);

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

300–500(–1000+);

corollas yellow proximally, yellow to reddish brown to purple distally, (1.6–)1.9–2.7 mm, lobes 4(–5).

(connate proximally) moderately to densely hairy.

(distinct or connate proximally) moderately hairy.

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

4–20(–30) per plant, in paniculiform arrays.

1–1.2 mm, moderately hairy;

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

1.2–1.9 mm, moderately hairy;

pappi of 5–6 entire, aristate scales 0.4–1 mm.

= 28.

= 58.