Flora of North America species comparison

1, glabrous or leaf axils sparsely tomentose.

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or glabrescent.

(and proximal cauline) petiolate;

blades narrowly ovate to oblong-lanceolate, 30–70+ × 10–20+ mm, bases abruptly contracted to subcordate, margins usually serrate-dentate, sometimes subcrenate (apices acute).

(and proximal cauline, relatively turgid) petiolate;

blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).

gradually reduced (± sessile; lacerate to subcrenate).

gradually reduced (sessile; bractlike, entire).

bracteate, glabrous.

bracteate, irregularly tomentose.

8–13;

corolla laminae 4–7 mm.

8–13;

corolla laminae 8–10 mm.

50–70+;

corolla tubes 3.5–4 mm, limbs 3–3.5 mm.

60–75+;

corolla tubes 2.5–4 mm, limbs 3.5–5 mm.

13 or 21, light green (tips sometimes black), 5–8 mm, glabrous.

(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).

conspicuous.

inconspicuous.

8–20+ in loose, corymbiform arrays.

3–6 in cymiform arrays.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

2–2.5 mm, glabrous;

pappi 5–7 mm.

= 44.

= 46.