Flora of North America species comparison

1 or 2–6+, clustered (bases cyanic), glabrous or leaf axils sparsely tomentose.

1 (often cyanic), glabrous.

(and proximal cauline) petiolate;

blades oblanceolate to spatulate (usually pinnately lobed, lateral lobes 1–6+ pairs, their bases petioluliform, terminal lobes usually larger than laterals, often reniform to ± orbiculate, midribs sometimes ± winged and/or toothed between the primary lobes), 40–120+ × 10–30+ mm, bases ± cuneate, ultimate margins subentire or irregularly crenate, dentate, or lobed.

(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, clasping; often auriculate, pinnately dissected to pinnately lobed).

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

bracteate, glabrous.

ebracteate, glabrous.

8 or 13;

corolla laminae 3–7 mm.

8 or 13;

corolla laminae 8–10+ mm.

30–45(–100+);

corolla tubes 1.5–2.5 mm, limbs (1.5–)2.5–3.5 mm.

40–50+;

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

13 or 21, green (tips sometimes reddish), 3–7 mm, glabrous.

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

inconspicuous or 0.

conspicuous (bractlets often cyanic).

4–25+ in corymbiform arrays.

borne singly.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1.5–2.5 mm, glabrous;

pappi 4–5.5 mm.

= 46.