Flora of North America species comparison

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

usually 1, rarely 2–3, clustered, glabrous.

(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.

(relatively thick and turgid) petiolate (petioles broad-winged or narrow, delicate);

blades ovate, ovate-orbiculate, oblong-lanceolate, orbiculate, suborbiculate, reniform, or subreniform, 10–50+ × 10–40 mm, bases tapering or subcordate to abruptly contracted, margins entire or crenate.

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

gradually reduced (proximal and mid sometimes as large as or larger than basal, sessile, oblanceolate to obovate, sometimes lyrate, sometimes auriculate and/or clasping, subentire to irregularly dissected; distal usually sessile, bractlike, sometimes larger).

bracteate, glabrous or proximally tomentose.

inconspicuously bracteate or ebracteate, glabrous.

8–13(–21);

corolla laminae 7–10 mm.

8 or 13;

corolla laminae (deep yellow to orange) 5–8+ mm.

40–50+;

corolla tubes 2–3 mm, limbs 2–3 mm.

45–60+;

corolla tubes 2–3 mm, limbs 2.5–3.5 mm.

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

(8–)13 or 21, green (tips cyanic), 5–7+ mm, glabrous.

conspicuous.

conspicuous (bases of bractlets swollen).

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

1–6+ in congested, corymbiform or subumbelliform arrays.

1–1.5 mm, glabrous or hirsute on ribs;

pappi 3–6 mm.

0.75–1.5 mm, glabrous, pappi 3–4 mm.

= 44, 88, 90.

= 46.