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

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 and proximal blades spatulate, entire;

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

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

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

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

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

14–20, pistillate, fertile;

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

15–30, pistillate, fertile;

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

250–500(–800+);

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

300–750(–1000+);

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

(connate proximally) moderately to densely hairy.

(connate proximally) usually tomentose.

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

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

1.8–2.4 mm, moderately hairy;

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

1.5–2.5 mm, moderately to densely hairy;

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

= 32.

= 32.