Flora of North America species comparison

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

1 or 2–4, clustered, bases sparsely floccose-tomentose or glabrous, 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, turgid) petiolate;

blades elliptic to ovate or subreniform, 20–40+ × 15–30+ mm, bases cuneate to subcordate, margins subentire or crenate to crenate-dentate.

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

gradually reduced (sessile; pinnately lobed, sinuses deep, rounded, ultimate margins entire or subentire).

bracteate, glabrous or sparsely tomentose.

ebracteate (or bractlets short), glabrous or sparsely hairy.

8 or 13;

corolla laminae 5–10 mm.

0.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

45–65+;

corolla tubes 3–4 mm, limbs 2–3 mm.

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

13 or 21, green (tips cyanic), 6–8+ mm, glabrous.

conspicuous.

inconspicuous.

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

6–20 in open or compact, corymbiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–2 mm, glabrous;

pappi 4.5–5.5 mm.

= 46, 92.

= 46.