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(–7), branched distally, strongly winged, sparsely to densely hairy proximally, moderately to densely 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.

usually moderately to densely hairy, sometimes glabrous;

basal blades (withered by flowering) lanceolate, oblanceolate, or obovate, entire or weakly lobed;

proximal and mid blades obovate to oblanceolate, usually dentate or entire;

distal blades oblanceolate to lanceolate, entire or dentate.

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

3–10 cm, moderately to densely hairy.

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

globoid, 8–20 × 8–23 mm.

14–20, pistillate, fertile;

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

8–21, pistillate, fertile;

corollas yellow, 10–23 × 4–10 mm.

250–500(–800+);

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

200–400(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 2.4–4 mm, lobes 5.

(connate proximally) moderately to densely hairy.

(connate proximally) moderately to densely hairy.

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

5–70(–100+) 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.

1–2 mm, sparsely to moderately hairy;

pappi of 5–7 entire, aristate scales (0.5–)0.9–1.5(–1.8) mm.

= 32.

= 32, 34, 36.