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 sparsely 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 ovate, oblanceolate, or spatulate, 10–30 × 5–20 mm, bases tapering, sometimes obtuse, margins entire, subentire, or dentate.

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

abruptly reduced (sessile, clasping; bractlike, entire).

bracteate, glabrous or sparsely tomentose.

bracteate (bractlets red-tinged), densely lanate-tomentose.

8 or 13;

corolla laminae 5–10 mm.

(8–)13;

corolla laminae 6–10+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

35–50+;

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

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

(13–)21, green (tips red or dark red), densely tomentose proximally.

conspicuous.

conspicuous (bractlets narrow, red-tinged).

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

1–4+ in corymbiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46, 92.

= 46.