Flora of North America species comparison

1 (striated, frequently hollow, often pink- to purple-tinged), glabrous or leaf axils sparsely tomentose.

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

(and proximal cauline) obscurely petiolate;

blades obovate to oblanceolate, sometimes lyrate (lateral lobes to 5 pairs, terminal lobes larger than laterals), 50–150+ × 10–30+ mm, bases tapering, ultimate margins crenate to irregularly undulate.

(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 (weakly clasping, similar to basal).

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

bracteate, glabrous or bases tomentose.

inconspicuously bracteate or ebracteate, glabrous.

(8–)13;

corolla laminae 7–9 mm.

5 or 8;

corolla laminae 5–10 mm.

35–50+;

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

20–30+;

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

(13–)21, green, 5–7 mm, glabrous.

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

conspicuous (bractlets 2.5–4 mm).

0 or inconspicuous.

8–30+ in umbelliform or cymiform arrays (robust plants with multiple arrays).

4–10+ in subumbelliform cymiform arrays.

1–1.5 mm, sparsely hirtellous on ribs or glabrous;

pappi 3–4 mm.

1–1.5 mm, glabrous;

pappi 4–4.5 mm.

= 46.

= 40.