Flora of North America species comparison

1, glabrous or sparsely tomentose.

usually 1, rarely 2–3, clustered, glabrous.

(and proximal cauline) petiolate;

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

(relatively thick and turgid) petiolate (petioles broad-winged or narrow, delicate);

blades ovate, ovate-orbiculate, oblong-lanceolate, orbiculate, suborbiculate, reniform, or subreniform, 10–50+ × 10–40 mm, bases tapering or subcordate to abruptly contracted, margins entire or crenate.

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

gradually reduced (proximal and mid sometimes as large as or larger than basal, sessile, oblanceolate to obovate, sometimes lyrate, sometimes auriculate and/or clasping, subentire to irregularly dissected; distal usually sessile, bractlike, sometimes larger).

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

inconspicuously bracteate or ebracteate, glabrous.

(8–)13;

corolla laminae 6–10+ mm.

8 or 13;

corolla laminae (deep yellow to orange) 5–8+ mm.

35–50+;

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

45–60+;

corolla tubes 2–3 mm, limbs 2.5–3.5 mm.

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

(8–)13 or 21, green (tips cyanic), 5–7+ mm, glabrous.

conspicuous (bractlets narrow, red-tinged).

conspicuous (bases of bractlets swollen).

1–4+ in corymbiform arrays.

1–6+ in congested, corymbiform or subumbelliform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

0.75–1.5 mm, glabrous, pappi 3–4 mm.

= 46.

= 46.