Flora of North America species comparison

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

1 (often purplish), sparsely lanate or arachno-tomentose, 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 lyrate to sublyrate (midribs winged) or ovate to orbiculate, 10–20+ × 30–50+ mm, bases tapering to contracted, ultimate margins ± dentate (faces glabrate at flowering).

gradually reduced (weakly clasping, similar to basal).

gradually reduced (sessile; usually bractlike and entire, sometimes larger and pinnatifid).

bracteate, glabrous or bases tomentose.

conspicuously bracteate (bractlets red-tipped), densely lanate-tomentose.

(8–)13;

corolla laminae 7–9 mm.

8 or 13;

corolla laminae 5–10 mm.

35–50+;

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

30–40+;

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

(13–)21, green, 5–7 mm, glabrous.

13 or 21, purplish, 6–9 mm, sparsely tomentose.

conspicuous (bractlets 2.5–4 mm).

conspicuous (bractlets reddish or purple).

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

borne singly or 2–6 in compact, cymiform arrays.

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

pappi 3–4 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46.

= 46.