Flora of North America species comparison

1, glabrous or leaf axils sparsely tomentose.

1 or 2–3, clustered, bases and leaf axils usually loosely floccose-tomentose, sometimes glabrate.

(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 ovate to obovate or suborbiculate, 30–80 × 20–40+ mm, bases tapering, sometimes obtuse or contracted, margins serrate-dentate to weakly crenate (abaxial faces sometimes hairy).

gradually reduced (± sessile; lacerate to subcrenate).

gradually reduced (petiolate, often sublyrate, sometimes weakly pinnatisect; mids and distals sessile, pinnatisect to subentire).

bracteate, glabrous.

bracteate, loosely tomentose or glabrescent.

8–13;

corolla laminae 4–7 mm.

8 or 13;

corolla laminae 5–8 mm.

50–70+;

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

50–65+;

corolla tubes 2–4 mm, limbs 2.5–3.5 mm.

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

(13–)21, green, 5–7 mm, glabrous or sparsely tomentose.

conspicuous.

0.

8–20+ in loose, corymbiform arrays.

3–9+ in open, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

1–2 mm, glabrous;

pappi 3.5–4.5 mm.

= 44.

= 44.