Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

1 or multiple, clustered, usually glabrous, rarely sparsely floccose-tomentose, leaf axils sometimes 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, relatively thick and turgid) petiolate;

blades lanceolate or narrowly oblanceolate, 20–40+ × 5–15 mm, bases tapering, margins usually entire, sometimes sub-pinnatisect (apices subentire or dentate).

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

gradually reduced (± petiolate or sessile).

ebracteate or inconspicuously bracteate, glabrous.

bracteate, glabrous or sparsely tomentose.

8 or 13;

corolla laminae 10–15+ mm.

8–10(–13);

corolla laminae 5–8+ mm.

30–45+;

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

45–60+;

corolla tubes 3–3.5 mm, limbs 4–5 mm.

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

13 or 21, green, 6–10 mm, sparsely tomentose proximally, glabrous distally.

conspicuous.

inconspicuous.

8–15+ in corymbiform or subumbelliform arrays.

4–15+ in corymbiform arrays.

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1.5–2.5 mm, glabrous or sparsely hirtellous on ribs;

pappi 5–6 mm.

= 46.

= 46.