Flora of North America species comparison

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

usually 1, usually unbranched distally, weakly winged, glabrous or sparsely to moderately hairy proximally, sparsely to moderately hairy distally.

glabrous or sparsely hairy;

blades narrowly elliptic to lance-linear, usually entire;

proximal blades sometimes pinnately lobed.

usually glabrous, rarely sparsely hairy;

basal blades obovate to oblanceolate, usually pinnatifid, sometimes undulate to undulate-serrate, rarely entire;

proximal and mid blades linear-oblanceolate to lance-linear, entire or undulate-serrate;

distal blades lance-linear, entire.

3–13 cm, sparsely to moderately hairy.

3–20 cm, moderately to densely hairy.

ovoid to conic, 7–11(–14) × 6–11 mm.

hemispheric, 12–20 × 15–30 mm.

10–15, pistillate, fertile;

corollas yellow, 7–12.4 × 4–8.8 mm.

13–34, neuter;

corollas yellow, 15–22 × 5–8 mm.

225–500+;

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

250–650(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 4–5.5 mm, lobes 5.

(connate proximally) sparsely to densely hairy.

moderately hairy.

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

1(–3) per plant, usually borne singly.

0.6–1.2 mm, moderately hairy;

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

1.2–1.4 mm, moderately hairy;

pappi of 8–11 entire or slightly lacerate, non-aristate scales 1.2–1.5 mm.

= 26.

= 32, 34.