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, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, 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.

(thick, leathery) petiolate;

blades narrowly lanceolate or oblanceolate, 25–100+ × 5–20 mm, bases tapering, margins entire, subentire, dentate, or wavy (adaxial faces early glabrescent).

gradually reduced (weakly clasping, similar to basal).

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

bracteate, glabrous or bases tomentose.

0 (or relatively reduced, then densely tomentose).

(8–)13;

corolla laminae 7–9 mm.

(5–)8;

corolla laminae 8–10+ mm.

35–50+;

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

35–45+;

corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.

(13–)21, green, 5–7 mm, glabrous.

(8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally.

conspicuous (bractlets 2.5–4 mm).

inconspicuous (bractlets red-tipped).

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

10–30+ in open or congested, cymiform arrays.

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

pappi 3–4 mm.

1–1.5 mm, glabrous;

pappi 5–6 mm.

= 46.

= 46.