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.

1–3(–15), usually branched distally, not 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;

basal blades linear to ovate, entire or pinnately toothed or lobed to pinnatifid;

mid and distal blades linear, entire.

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

3–11 cm, sparsely hairy.

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

hemispheric to globose or globoid, 5–9 × 6–10 mm.

14–20, pistillate, fertile;

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

8–10, pistillate, fertile;

corollas yellow, 4.5–14 × 2–10 mm.

250–500(–800+);

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

75–250+;

corollas yellow proximally, yellow to yellow-brown or purple distally, 1.6–2.7 × 0.8–1.2 mm, lobes 5.

(connate proximally) moderately to densely hairy.

moderately to densely hairy.

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

(1–)10–150(–250+) 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.

0.7–1.3 mm, moderately to densely hairy;

pappi of 6–8 entire, aristate scales 1–1.8 mm.

= 32.