Flora of North America species comparison

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

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

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.

usually glabrous, rarely sparsely hairy;

basal blades obovate to oblanceolate, usually pinnatifid, sometimes undulate to undulate-serrate, rarely entire;

proximal and mid blades linear-oblanceolate to lance-linear, entire or undulate-serrate;

distal blades lance-linear, entire.

3–10 cm, moderately to densely hairy.

3–20 cm, moderately to densely hairy.

globoid, 8–20 × 8–23 mm.

hemispheric, 12–20 × 15–30 mm.

8–21, pistillate, fertile;

corollas yellow, 10–23 × 4–10 mm.

13–34, neuter;

corollas yellow, 15–22 × 5–8 mm.

200–400(–800+);

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

250–650(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 4–5.5 mm, lobes 5.

(connate proximally) moderately to densely hairy.

moderately hairy.

5–70(–100+) per plant, in paniculiform arrays.

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

1–2 mm, sparsely to moderately hairy;

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

1.2–1.4 mm, moderately hairy;

pappi of 8–11 entire or slightly lacerate, non-aristate scales 1.2–1.5 mm.

= 32, 34, 36.

= 32, 34.