Flora of North America species comparison

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

1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils.

(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).

(and proximal cauline, relatively thick and turgid) petiolate;

blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy).

gradually reduced (sessile; bractlike, entire).

gradually to abruptly reduced (± petiolate or sessile; entire or subentire).

bracteate, irregularly tomentose.

bracteate, glabrous or sparsely tomentose.

8–13;

corolla laminae 8–10 mm.

8 or 13;

corolla laminae 5–10 mm.

60–75+;

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

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

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

(8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous.

inconspicuous.

conspicuous.

3–6 in cymiform arrays.

2–20+ in loose, corymbiform or subumbelliform arrays.

2–2.5 mm, glabrous;

pappi 5–7 mm.

1–2.5 mm, glabrous;

pappi 3–6 mm.

= 46.

= 46, 92.