Flora of North America species comparison

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

1–3(–15), usually branched distally, not 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;

basal blades linear to ovate, entire or pinnately toothed or lobed to pinnatifid;

mid and distal blades linear, entire.

3–10 cm, sparsely to moderately hairy.

3–11 cm, sparsely hairy.

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

hemispheric to globose or globoid, 5–9 × 6–10 mm.

usually 8–13, neuter, sometimes 0;

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

8–10, pistillate, fertile;

corollas yellow, 4.5–14 × 2–10 mm.

250–500(–700+);

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

75–250+;

corollas yellow proximally, yellow to yellow-brown or purple distally, 1.6–2.7 × 0.8–1.2 mm, lobes 5.

(connate proximally) moderately to densely hairy.

moderately to densely hairy.

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

(1–)10–150(–250+) per plant, in paniculiform arrays.

1–1.2 mm, moderately hairy;

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

0.7–1.3 mm, moderately to densely hairy;

pappi of 6–8 entire, aristate scales 1–1.8 mm.

= 28.