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 proximally, glabrous or 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.

usually glabrous, rarely sparsely hairy;

basal blades obovate to narrowly oblanceolate, usually entire or undulate to undulate-serrate;

proximal and mid blades usually narrowly lanceolate to narrowly oblanceolate, usually entire, sometimes toothed;

distal blades lance-linear, entire.

3–10 cm, sparsely to moderately hairy.

2–23 cm, usually glabrous, sometimes sparsely hairy.

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

hemispheric, 10–17 × 15–27 mm.

usually 8–13, neuter, sometimes 0;

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

13–30, neuter;

corollas yellow, 15–21 × 5–10 mm.

250–500(–700+);

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

150–650(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 4.6–6 mm, lobes 5.

(connate proximally) moderately to densely hairy.

glabrous or sparsely 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.

1–1.5 mm, glabrous;

pappi of usually 8 entire or lacerate, non-aristate scales 1.5–2 mm.

= 28.

= 34.