Flora of North America species comparison

1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils.

1, glabrous or leaf axils tomentose.

(and proximal cauline, relatively thick and turgid) petiolate;

blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy).

(and proximal cauline) petiolate;

blades spatulate to obovate (pinnately lobed, terminal lobes ovate to oblong, lateral lobes 2–6+ pairs, smaller, midribs narrowly winged), 100–300+ × 20–50(–80+) mm, bases contracted to tapering, ultimate margins crenate or dentate to lacerate (faces glabrous).

gradually to abruptly reduced (± petiolate or sessile; entire or subentire).

gradually reduced (petiolate or sessile; obovate, irregularly incised to subpinnate, terminal lobes narrow).

bracteate, glabrous or sparsely tomentose.

usually ebracteate (rarely with 1–2 bractlets), glabrous.

8 or 13;

corolla laminae 5–10 mm.

8–10+;

corolla laminae 10–15+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

45–60+;

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

(8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous.

13 or 21, green, 7–9+ mm, glabrous.

conspicuous.

inconspicuous.

2–20+ in loose, corymbiform or subumbelliform arrays.

15–50+ in corymbiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

2–2.5 mm, glabrous;

pappi 6–7 mm.

= 46, 92.

= 46.