Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

usually 1 or 2–5, rarely 6–20, clustered, glabrous but for tomentose 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.

petiolate;

blades elliptic-ovate, broadly oblanceolate, or lyrate (lateral lobes 3–9 pairs), 40–70 × 15–25 mm, bases tapering, margins irregularly and deeply parted or lobed (apices incised).

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

usually gradually, sometimes abruptly, reduced (petiolate or sessile; narrowly elliptic to oblanceolate, pinnatifid).

ebracteate or inconspicuously bracteate, glabrous.

ebracteate or bracteate, glabrous.

8 or 13;

corolla laminae 10–15+ mm.

(10–)13;

corolla laminae 5–7+ mm.

30–45+;

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

60–75+;

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, light green, 4–6+ mm, glabrous.

conspicuous.

usually 0, sometimes inconspicuous.

8–15+ in corymbiform or subumbelliform arrays.

3–20+ in open or congested, corymbiform arrays, frequently subtended by smaller arrays from leaf axils.

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1–1.5 mm, hirsute on ribs;

pappi 3–5 mm.

= 46.

= 36.