Flora of North America species comparison

1 or 2–4, clustered (proximally deeply purple-tinged, distally lightly tinged), glabrous or tomentose at bases and in leaf axils.

usually 1, sometimes multiple, bases and leaf axils tomentose, otherwise glabrous.

(and proximal cauline) petiolate;

blades obovate or lyrate (pinnately lobed, lateral lobes 2–6+ pairs, their bases petioluliform, terminal lobes larger than laterals, midribs narrowly winged), 60–160+ × 20–40+ mm, bases wide, ultimate margins sharply dentate, crenate-dentate, or irregularly incised.

(and proximal cauline) petiolate;

blades oblanceolate to obovate or lyrate (pinnately lobed to pinnatifid, terminal lobes larger than laterals), 10–30+ × 10–20+ mm, bases tapering, ultimate margins ± crenate to serrate.

gradually reduced (petiolate or sessile; shallowly lobed, midribs ± winged, distals bractlike, dentate to incised).

gradually to abruptly reduced (sessile; pinnatisect or entire).

ebracteate, glabrous.

bracteate (bractlets purple-tinged), glabrous or glabrate.

(8–)13;

corolla laminae 6–10+ mm.

0 (rarely) or 10–12;

corolla laminae 8–10 mm.

60–70+;

corolla tubes 2–3 mm, limbs 3.5–4.5 mm.

45–60+;

corolla tubes 3.5–4 mm, limbs 3–3.5 mm.

(13–)21, green (tips yellow), 5–7 mm, glabrous (tips sometimes hairy).

13, green (sometimes purple-tinged distally), 6–8 mm, glabrous.

inconspicuous.

0 or inconspicuous (bractlets purple-tinged).

15–40+ in open, cymiform arrays.

1–2(–5+) in cymiform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

1.5–2.5 mm, hirtellous on ribs;

pappi 6–7 mm.

= 92.

= 46.