Flora of North America species comparison

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

1 (often cyanic), glabrous.

(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).

(relatively turgid, abaxial faces cyanic) petiolate;

blades reniform to subreniform, 5–15+ × 5–25+ mm, bases abruptly contracted to cordate, margins usually crenate, sometimes wavy.

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

abruptly reduced (1–4, sessile; bractlike, entire).

bracteate, glabrous or sparsely tomentose.

ebracteate, glabrous.

8 or 13;

corolla laminae 5–10 mm.

8 or 13;

corolla laminae 8–10+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

40–50+;

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

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

13 or 21, deep red, 8–10+ mm, glabrous.

conspicuous.

conspicuous (bractlets often cyanic).

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

borne singly.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1.5–2.5 mm, glabrous;

pappi 4–5.5 mm.

= 46, 92.