Flora of North America species comparison

1, glabrous or leaf axils sparsely tomentose.

1 or 2–5 (often scapiform), loosely clustered, glabrous or leaf axils sparsely hairy.

(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).

(and proximal cauline) petiolate;

blades obovate to ovate or sublyrate, 30–60+ × 10–40+ mm, bases tapering, margins deeply dissected or pinnatifid, ultimate margins crenate to crenate-dentate.

gradually reduced (± sessile; lacerate to subcrenate).

abruptly reduced or 0 (sessile; ovate to obovate, dissected or pinnatifid).

bracteate, glabrous.

inconspicuously bracteate or ebracteate, glabrous.

8–13;

corolla laminae 4–7 mm.

5 or 8;

corolla laminae 5–10 mm.

50–70+;

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

20–30+;

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

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

(8–)13, light green (tips yellowish), 4–7 mm, glabrous.

conspicuous.

0 or inconspicuous.

8–20+ in loose, corymbiform arrays.

4–10+ in subumbelliform cymiform arrays.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

1–1.5 mm, glabrous;

pappi 4–4.5 mm.

= 44.

= 40.