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(–2), branched distally, strongly winged, glabrous or sparsely to moderately hairy proximally, glabrous or sparsely 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 to densely hairy;

basal blades oblanceolate, weakly to strongly lobed;

proximal and mid blades oblanceolate to lanceolate, usually entire, sometimes dentate;

distal blades usually lanceolate, entire.

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

2–8 cm, sparsely to moderately hairy.

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

globoid, 8–15 × 10–16 mm.

14–20, pistillate, fertile;

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

8–13, pistillate, fertile;

corollas yellow, 10–15 × 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+;

corollas yellow proximally, yellow to yellow-brown distally, 2.5–3.5 mm, lobes 5.

(connate proximally) moderately to densely hairy.

(connate proximally) sparsely to moderately hairy.

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

2–25+ 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.

1.8–2.3 mm, moderately hairy;

pappi of 5–6 entire, aristate scales 1.3–2 mm.

= 32.