Flora of North America species comparison

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

1 or multiple, loosely clustered, usually glabrous, sometimes tomentose proximally and in leaf axils.

(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.

(and proximal cauline) petiolate;

blades orbiculate, ovate, or obovate, 40–100+ × 20–80+ mm, bases tapering, rounded, or abruptly contracted, margins crenate, dentate, or serrate.

gradually reduced (± petiolate or sessile, clasping; often auriculate, pinnately dissected to pinnately lobed).

gradually reduced (sessile, clasping; pinnatisect or sublyrate).

bracteate, glabrous.

bracteate, glabrous or proximally tomentose.

8 or 13;

corolla laminae 3–7 mm.

8–13(–21);

corolla laminae 7–10 mm.

30–45(–100+);

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

40–50+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, green (tips sometimes reddish), 3–6 mm, glabrous or floccose-tomentose proximally.

inconspicuous or 0.

conspicuous.

4–25+ in corymbiform arrays.

6–15+ in open or congested, corymbiform arrays.

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

1–1.5 mm, glabrous or hirsute on ribs;

pappi 3–6 mm.

= 46.

= 44, 88, 90.