Flora of North America species comparison

1, glabrous or sparsely tomentose.

1, glabrous or leaf axils sparsely 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) petiolate;

blades narrowly ovate to oblong-lanceolate, 30–70+ × 10–20+ mm, bases abruptly contracted to subcordate, margins usually serrate-dentate, sometimes subcrenate (apices acute).

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

gradually reduced (± sessile; lacerate to subcrenate).

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

bracteate, glabrous.

(8–)13;

corolla laminae 6–10+ mm.

8–13;

corolla laminae 4–7 mm.

35–50+;

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

50–70+;

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

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

13 or 21, light green (tips sometimes black), 5–8 mm, glabrous.

conspicuous (bractlets narrow, red-tinged).

conspicuous.

1–4+ in corymbiform arrays.

8–20+ in loose, corymbiform arrays.

1.5–2 mm, glabrous;

pappi 5–6 mm.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

= 46.

= 44.