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 or 2–3+, clustered, 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.

petiolate;

blades cordate to reniform, 20–60 × 20–60 mm, bases abruptly contracted or ± cordate, margins crenate to crenate-serrate (apices rounded, faces glabrous).

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

gradually reduced (petiolate or sessile, not clasping; blades oblong to lyrate, lateral lobes 2–4 pairs).

ebracteate, glabrous.

bracteate, glabrous or sparsely tomentose.

(8–)13;

corolla laminae 6–10+ mm.

(8–)10–13;

corolla laminae 8–10+ mm.

60–70+;

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

55–70+;

corolla tubes 3–3.5 mm, limbs 2–2.5 mm.

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

13–21, green (tips purple or black), 6–8 mm, glabrous or sparsely tomentose proximally.

inconspicuous.

inconspicuous.

15–40+ in open, cymiform arrays.

6–20+ in corymbiform to subumbelliform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

1–1.5 mm, glabrous;

pappi 4.5–5.5 mm.

= 92.

= 44.