Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

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

(and proximal cauline) petiolate;

blades ± orbiculate to oblong, or lyrate (lateral lobes 1–3 pairs, sinuses usually rounded, midribs usually winged), 50–120+ × 30–70+ mm, bases cordate to subcordate, margins shallowly to deeply incised.

(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 and clasping; lanceolate, incised).

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

ebracteate or inconspicuously bracteate, glabrous.

bracteate, glabrous or proximally tomentose.

8 or 13;

corolla laminae 10–15+ mm.

8–13(–21);

corolla laminae 7–10 mm.

30–45+;

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

40–50+;

corolla tubes 2–3 mm, limbs 2–3 mm.

(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.

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

conspicuous.

conspicuous.

8–15+ in corymbiform or subumbelliform arrays.

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

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1–1.5 mm, glabrous or hirsute on ribs;

pappi 3–6 mm.

= 46.

= 44, 88, 90.