Flora of North America species comparison

1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, or glabrescent.

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

(thick, leathery) petiolate;

blades narrowly lanceolate or oblanceolate, 25–100+ × 5–20 mm, bases tapering, margins entire, subentire, dentate, or wavy (adaxial faces early glabrescent).

(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 reduced (sessile; lanceolate to oblanceolate, entire or wavy).

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

0 (or relatively reduced, then densely tomentose).

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

(5–)8;

corolla laminae 8–10+ mm.

0.

35–45+;

corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.

45–65+;

corolla tubes 3–4 mm, limbs 2–3 mm.

(8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally.

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

inconspicuous (bractlets red-tipped).

inconspicuous.

10–30+ in open or congested, cymiform arrays.

6–20 in open or compact, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 5–6 mm.

1–2 mm, glabrous;

pappi 4.5–5.5 mm.

= 46.

= 46.