Flora of North America species comparison

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

usually 1, branched distally, narrowly winged, sparsely hairy proximally, 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.

glabrous or sparsely hairy (basal withered by flowering);

proximal blades lance-linear, usually coarsely or irregularly laciniate;

mid and distal blades lance-linear to linear, entire.

3–10 cm, moderately to densely hairy.

2–8 cm, sparsely to moderately hairy.

globoid, 8–20 × 8–23 mm.

globose to slightly ovoid, 6–11(–13) × 6–11(–13) mm.

8–21, pistillate, fertile;

corollas yellow, 10–23 × 4–10 mm.

8–9, pistillate, fertile;

corollas yellow throughout or red proximally and yellow distally or red throughout, 6–12 × 3–8 mm.

200–400(–800+);

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

150–300(–500+);

corollas yellow-green proximally, brown to purple distally, 2.5–3.2 mm, lobes 5.

(connate proximally) moderately to densely hairy.

moderately hairy.

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

5–50(–100+) per plant, in paniculiform arrays.

1–2 mm, sparsely to moderately hairy;

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

1–1.2 mm, moderately hairy;

pappi of 6(–7) entire, aristate scales 2–2.5 mm.

= 32, 34, 36.

= 28.