Flora of North America species comparison

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

usually 1, branched distally, moderately winged, sparsely hairy proximally, moderately 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 hairy (basal leaves withered by flowering);

proximal blades lanceolate to lance-linear, usually irregularly laciniate;

mid and distal blades lance-linear, entire.

3–10 cm, moderately to densely hairy.

3–10 cm, moderately hairy.

globoid, 8–20 × 8–23 mm.

ovoid to conic, 6–10 × 5–10 mm.

8–21, pistillate, fertile;

corollas yellow, 10–23 × 4–10 mm.

0.

200–400(–800+);

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

225–500+;

corollas yellow-green proximally, brown to reddish brown distally, 1–1.3 mm, lobes 4.

(connate proximally) moderately to densely hairy.

(strongly connate proximally), moderately hairy.

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

10–75(–120+) 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.

0.9–1.2(–1.5) mm, moderately hairy;

pappi of 6(–7) entire, non-aristate scales 0.2–0.5 mm.

= 32, 34, 36.

= 26.