Flora of North America species comparison

1, glabrous or leaf axils tomentose.

1 or 2–3, clustered, bases and leaf axils usually loosely floccose-tomentose, sometimes glabrate.

(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).

petiolate;

blades ovate to obovate or suborbiculate, 30–80 × 20–40+ mm, bases tapering, sometimes obtuse or contracted, margins serrate-dentate to weakly crenate (abaxial faces sometimes hairy).

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

gradually reduced (petiolate, often sublyrate, sometimes weakly pinnatisect; mids and distals sessile, pinnatisect to subentire).

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

bracteate, loosely tomentose or glabrescent.

8–10+;

corolla laminae 10–15+ mm.

8 or 13;

corolla laminae 5–8 mm.

45–60+;

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

50–65+;

corolla tubes 2–4 mm, limbs 2.5–3.5 mm.

13 or 21, green, 7–9+ mm, glabrous.

(13–)21, green, 5–7 mm, glabrous or sparsely tomentose.

inconspicuous.

0.

15–50+ in corymbiform arrays.

3–9+ in open, corymbiform arrays.

2–2.5 mm, glabrous;

pappi 6–7 mm.

1–2 mm, glabrous;

pappi 3.5–4.5 mm.

= 46.

= 44.