Flora of North America species comparison

1, glabrous or leaf axils sparsely tomentose.

1 or multiple (crowded to subcespitose), floccose-tomentose or glabrescent.

(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).

petiolate;

blades lanceolate to oblanceolate, 30–60+ × 10–30+ mm, bases tapering, margins shallowly, evenly pinnatifid to pinnatisect or wavy (adaxial faces floccose-tomentose or subglabrescent).

gradually reduced (± sessile; lacerate to subcrenate).

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

bracteate, glabrous.

bracteate, densely to irregularly floccose.

8–13;

corolla laminae 4–7 mm.

6–8+;

corolla laminae 5–7 mm.

50–70+;

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

30–40+;

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

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

13, green, 5–7 mm, floccose proximally to glabrescent distally.

conspicuous.

0 or inconspicuous (bractlets red-tinged).

8–20+ in loose, corymbiform arrays.

6–25+ in open or compact, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

2.5–3 mm, glabrous;

pappi 4–5 mm.

= 44.

= 46.