Flora of North America species comparison

1(–7), branched distally, strongly winged, sparsely to densely hairy proximally, moderately to densely hairy distally.

1(–2), branched distally, strongly winged, glabrous or sparsely to moderately hairy proximally, glabrous or sparsely hairy distally.

usually moderately to densely hairy, sometimes glabrous;

basal blades (withered by flowering) lanceolate, oblanceolate, or obovate, entire or weakly lobed;

proximal and mid blades obovate to oblanceolate, usually dentate or entire;

distal blades oblanceolate to lanceolate, entire or dentate.

glabrous or sparsely to densely hairy;

basal blades oblanceolate, weakly to strongly lobed;

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

distal blades usually lanceolate, entire.

3–10 cm, moderately to densely hairy.

2–8 cm, sparsely to moderately hairy.

globoid, 8–20 × 8–23 mm.

globoid, 8–15 × 10–16 mm.

8–21, pistillate, fertile;

corollas yellow, 10–23 × 4–10 mm.

8–13, pistillate, fertile;

corollas yellow, 10–15 × 4–10 mm.

200–400(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 2.4–4 mm, lobes 5.

200–400+;

corollas yellow proximally, yellow to yellow-brown distally, 2.5–3.5 mm, lobes 5.

(connate proximally) moderately to densely hairy.

(connate proximally) sparsely to moderately hairy.

5–70(–100+) per plant, in paniculiform arrays.

2–25+ per plant, in paniculiform arrays.

1–2 mm, sparsely to moderately hairy;

pappi of 5–7 entire, aristate scales (0.5–)0.9–1.5(–1.8) mm.

1.8–2.3 mm, moderately hairy;

pappi of 5–6 entire, aristate scales 1.3–2 mm.

= 32, 34, 36.