Flora of North America species comparison

usually 1, branched distally, moderately winged, sparsely hairy proximally, moderately hairy distally.

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

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.

glabrous or sparsely hairy;

blades narrowly elliptic to lance-linear, usually entire;

proximal blades sometimes pinnately lobed.

3–10 cm, moderately hairy.

3–13 cm, sparsely to moderately hairy.

ovoid to conic, 6–10 × 5–10 mm.

ovoid to conic, 7–11(–14) × 6–11 mm.

0.

10–15, pistillate, fertile;

corollas yellow, 7–12.4 × 4–8.8 mm.

225–500+;

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

225–500+;

corollas yellow proximally, yellow to brown to reddish brown distally, 1.1–1.8 mm, lobes 4.

(strongly connate proximally), moderately hairy.

(connate proximally) sparsely to densely hairy.

10–75(–120+) per plant, in paniculiform arrays.

5–15(–50+) per plant, in paniculiform arrays.

0.9–1.2(–1.5) mm, moderately hairy;

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

0.6–1.2 mm, moderately hairy;

pappi of usually 6 entire, non-aristate scales 0.1–0.3 mm.

= 26.

= 26.