Flora of North America species comparison

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

glabrous or sparsely hairy;

basal and proximal blades spatulate, entire;

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

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

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

15–30, pistillate, fertile;

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

300–750(–1000+);

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

(connate proximally) usually tomentose.

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

1.5–2.5 mm, moderately to densely hairy;

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

= 32.