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 proximally, sparsely to moderately hairy distally.

glabrous or sparsely hairy;

blades narrowly elliptic to lance-linear, usually entire;

proximal blades sometimes pinnately lobed.

glabrous or sparsely hairy;

basal and proximal blades spatulate, entire;

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

3–13 cm, sparsely to moderately hairy.

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

ovoid to conic, 7–11(–14) × 6–11 mm.

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

10–15, pistillate, fertile;

corollas yellow, 7–12.4 × 4–8.8 mm.

15–30, pistillate, fertile;

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

225–500+;

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

300–750(–1000+);

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

(connate proximally) sparsely to densely hairy.

(connate proximally) usually tomentose.

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.

1.5–2.5 mm, moderately to densely hairy;

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

= 26.

= 32.