Flora of North America species comparison

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

3–10 cm, moderately to densely hairy.

globoid, 8–20 × 8–23 mm.

8–21, pistillate, fertile;

corollas yellow, 10–23 × 4–10 mm.

200–400(–800+);

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

(connate proximally) moderately to densely hairy.

5–70(–100+) 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.

= 32, 34, 36.