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.

usually 1, usually unbranched distally, weakly winged, glabrous 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.

usually glabrous, rarely sparsely hairy;

basal blades obovate to narrowly oblanceolate, usually entire or undulate to undulate-serrate;

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

distal blades lance-linear, entire.

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

2–23 cm, usually glabrous, sometimes sparsely hairy.

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

hemispheric, 10–17 × 15–27 mm.

14–20, pistillate, fertile;

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

13–30, neuter;

corollas yellow, 15–21 × 5–10 mm.

250–500(–800+);

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

150–650(–800+);

corollas yellow proximally, yellow to yellow-brown distally, 4.6–6 mm, lobes 5.

(connate proximally) moderately to densely hairy.

glabrous or sparsely hairy.

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

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

1.8–2.4 mm, moderately hairy;

pappi of 6–8 entire, aristate scales 1.3–2.2(–2.7) mm.

1–1.5 mm, glabrous;

pappi of usually 8 entire or lacerate, non-aristate scales 1.5–2 mm.

= 32.

= 34.