Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

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

(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.

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

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).

ebracteate or inconspicuously bracteate, glabrous.

inconspicuously bracteate or ebracteate, glabrous.

8 or 13;

corolla laminae 10–15+ mm.

8 or 13;

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

30–45+;

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

45–60+;

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

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

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

conspicuous.

conspicuous (bases of bractlets swollen).

8–15+ in corymbiform or subumbelliform arrays.

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

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

0.75–1.5 mm, glabrous, pappi 3–4 mm.

= 46.

= 46.