Flora of North America species comparison

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

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

(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.

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 (weakly clasping, similar to basal).

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

bracteate, glabrous or bases tomentose.

bracteate, densely to irregularly floccose.

(8–)13;

corolla laminae 7–9 mm.

6–8+;

corolla laminae 5–7 mm.

35–50+;

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

30–40+;

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

(13–)21, green, 5–7 mm, glabrous.

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

conspicuous (bractlets 2.5–4 mm).

0 or inconspicuous (bractlets red-tinged).

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

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

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

pappi 3–4 mm.

2.5–3 mm, glabrous;

pappi 4–5 mm.

= 46.

= 46.