Flora of North America species comparison

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

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

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;

basal and proximal blades spatulate, entire;

mid and distal blades ovate to oblanceolate to oblong-elliptic, entire.

3–10 cm, moderately hairy.

10–30(–50) cm, usually densely hairy (tomentose near involucres).

ovoid to conic, 6–10 × 5–10 mm.

depressed hemispheric to globoid, 14–24 × 18–34 mm.

0.

15–30, pistillate, fertile;

corollas yellow, (12–)16–28(–37) × 6–13(–25) mm.

225–500+;

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

300–750(–1000+);

corollas yellow proximally, yellow to brown to purple distally, 4–5(–5.2) mm, lobes 5.

(strongly connate proximally), moderately hairy.

(connate proximally) usually tomentose.

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

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

0.9–1.2(–1.5) mm, moderately hairy;

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

1.5–2.5 mm, moderately to densely hairy;

pappi of 6–8 entire, aristate scales (2.5–)3–4.5 mm.

= 26.

= 32.