Flora of North America species comparison

1, glabrous or sparsely tomentose.

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

(and proximal cauline) petiolate;

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

(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).

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

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

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

0 (or relatively reduced, then densely tomentose).

(8–)13;

corolla laminae 6–10+ mm.

(5–)8;

corolla laminae 8–10+ mm.

35–50+;

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

35–45+;

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

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

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

conspicuous (bractlets narrow, red-tinged).

inconspicuous (bractlets red-tipped).

1–4+ in corymbiform arrays.

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

1.5–2 mm, glabrous;

pappi 5–6 mm.

1–1.5 mm, glabrous;

pappi 5–6 mm.

= 46.

= 46.