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 bases hairy.

(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, relatively turgid or leathery) petiolate;

blades reniform to suborbiculate, 40–70+ × 40–80+ mm, bases truncate to cordate, margins dentate or shallowly lobed.

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

abruptly reduced (petiolate or sessile, oblanceolate, pinnatifid; distal sessile, bractlike).

bracteate, glabrous or sparsely tomentose.

ebracteate (or bractlets 1–2), glabrous.

8 or 13;

corolla laminae 5–10 mm.

13 or 21;

corolla laminae 10–12+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

40–60+;

corolla tubes 3–4 mm, limbs 2.5–3.5 mm.

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

(13–)21, dark green with yellow margins, 8–11+ mm, glabrous.

conspicuous.

0 or inconspicuous.

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

3–6+ in compact, cymiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

5–6 mm, glabrous;

pappi 5–7 mm.

= 46, 92.