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 (often cyanic), 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.

(relatively turgid, abaxial faces cyanic) petiolate;

blades reniform to subreniform, 5–15+ × 5–25+ mm, bases abruptly contracted to cordate, margins usually crenate, sometimes wavy.

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

abruptly reduced (1–4, sessile; bractlike, entire).

ebracteate, glabrous.

ebracteate, glabrous.

(8–)13;

corolla laminae 6–10+ mm.

8 or 13;

corolla laminae 8–10+ mm.

60–70+;

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

40–50+;

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

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

13 or 21, deep red, 8–10+ mm, glabrous.

inconspicuous.

conspicuous (bractlets often cyanic).

15–40+ in open, cymiform arrays.

borne singly.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

1.5–2.5 mm, glabrous;

pappi 4–5.5 mm.

= 92.