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.

1, glabrous or leaf axils tomentose.

(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 spatulate to obovate (pinnately lobed, terminal lobes ovate to oblong, lateral lobes 2–6+ pairs, smaller, midribs narrowly winged), 100–300+ × 20–50(–80+) mm, bases contracted to tapering, ultimate margins crenate or dentate to lacerate (faces glabrous).

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

gradually reduced (petiolate or sessile; obovate, irregularly incised to subpinnate, terminal lobes narrow).

ebracteate, glabrous.

usually ebracteate (rarely with 1–2 bractlets), glabrous.

(8–)13;

corolla laminae 6–10+ mm.

8–10+;

corolla laminae 10–15+ mm.

60–70+;

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

45–60+;

corolla tubes 3–3.5 mm, limbs 4–4.5 mm.

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

13 or 21, green, 7–9+ mm, glabrous.

inconspicuous.

inconspicuous.

15–40+ in open, cymiform arrays.

15–50+ in corymbiform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

2–2.5 mm, glabrous;

pappi 6–7 mm.

= 92.

= 46.