Flora of North America species comparison

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

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

(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 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 (weakly clasping, similar to basal).

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

bracteate, glabrous or bases tomentose.

bracteate, loosely tomentose or glabrescent.

(8–)13;

corolla laminae 7–9 mm.

8 or 13;

corolla laminae 5–8 mm.

35–50+;

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

50–65+;

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

(13–)21, green, 5–7 mm, glabrous.

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

conspicuous (bractlets 2.5–4 mm).

0.

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

3–9+ in open, corymbiform arrays.

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

pappi 3–4 mm.

1–2 mm, glabrous;

pappi 3.5–4.5 mm.

= 46.

= 44.