Flora of North America species comparison

1–3(–10), unbranched or sparingly branched distally, weakly to moderately winged, glabrous proximally, glabrous or sparsely hairy distally.

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

glabrous or sparsely hairy;

basal blades oblanceolate to oblong-elliptic, entire;

proximal and mid blades lanceolate to oblong-elliptic, entire;

distal blades linear to lanceolate, entire.

glabrous or sparsely hairy;

blades narrowly elliptic to lance-linear, usually entire;

proximal blades sometimes pinnately lobed.

(6–)10–30 cm, sparsely to moderately hairy.

3–13 cm, sparsely to moderately hairy.

hemispheric to globoid, 12–20 × (14–)17–22(–25) mm.

ovoid to conic, 7–11(–14) × 6–11 mm.

14–20, pistillate, fertile;

corollas yellow, 13–25 × 5–10(–12) mm.

10–15, pistillate, fertile;

corollas yellow, 7–12.4 × 4–8.8 mm.

250–500(–800+);

corollas yellow proximally, yellow to brown to purple distally, 3–4.4(–4.8) mm, lobes 5.

225–500+;

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

(connate proximally) moderately to densely hairy.

(connate proximally) sparsely to densely hairy.

1–20 per plant, borne singly or in paniculiform arrays.

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

1.8–2.4 mm, moderately hairy;

pappi of 6–8 entire, aristate scales 1.3–2.2(–2.7) mm.

0.6–1.2 mm, moderately hairy;

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

= 32.

= 26.