Flora of North America species comparison

1, glabrous or sparsely tomentose.

1 or 2–4, clustered, bases sparsely floccose-tomentose or glabrous, leaf axils tomentose.

(and proximal cauline) petiolate;

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

(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.

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

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

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

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

(8–)13;

corolla laminae 6–10+ mm.

0.

35–50+;

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

45–65+;

corolla tubes 3–4 mm, limbs 2–3 mm.

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

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

conspicuous (bractlets narrow, red-tinged).

inconspicuous.

1–4+ in corymbiform arrays.

6–20 in open or compact, corymbiform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

1–2 mm, glabrous;

pappi 4.5–5.5 mm.

= 46.

= 46.