Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

1, glabrous or leaf axils sparsely tomentose.

(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 narrowly ovate to oblong-lanceolate, 30–70+ × 10–20+ mm, bases abruptly contracted to subcordate, margins usually serrate-dentate, sometimes subcrenate (apices acute).

gradually reduced (petiolate or sessile and clasping; lanceolate, incised).

gradually reduced (± sessile; lacerate to subcrenate).

ebracteate or inconspicuously bracteate, glabrous.

bracteate, glabrous.

8 or 13;

corolla laminae 10–15+ mm.

8–13;

corolla laminae 4–7 mm.

30–45+;

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

50–70+;

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

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

13 or 21, light green (tips sometimes black), 5–8 mm, glabrous.

conspicuous.

conspicuous.

8–15+ in corymbiform or subumbelliform arrays.

8–20+ in loose, corymbiform arrays.

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

= 46.

= 44.