Flora of North America species comparison

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

1 (per rosette, rosettes clustered), lanate-tomentose to 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.

(and proximal cauline) petiolate;

blades obovate to broadly spatulate, 5–20+ × 10–15 mm, bases tapering, margins subentire or dentate apically (faces lanate-tomentose to glabrescent).

gradually reduced (weakly clasping, similar to basal).

gradually reduced (sessile; spatulate to linear, densely tomentose).

bracteate, glabrous or bases tomentose.

bracteate, densely lanate-tomentose.

(8–)13;

corolla laminae 7–9 mm.

8 or 13;

corolla laminae 8–10 mm.

35–50+;

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

35–50+;

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

(13–)21, green, 5–7 mm, glabrous.

13 or 21, green, 6–8 mm, lanate-tomentose, glabrate distally.

conspicuous (bractlets 2.5–4 mm).

0.

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

2–8+ in compact cymiform arrays.

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

pappi 3–4 mm.

0.75–1 mm, glabrous or hispid on ribs;

pappi 3–4 mm.

= 46.

= 46.