Flora of North America species comparison

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

1, glabrous or bases hairy.

(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 turgid or leathery) petiolate;

blades reniform to suborbiculate, 40–70+ × 40–80+ mm, bases truncate to cordate, margins dentate or shallowly lobed.

gradually reduced (sessile; bractlike, entire).

abruptly reduced (petiolate or sessile, oblanceolate, pinnatifid; distal sessile, bractlike).

bracteate, irregularly tomentose.

ebracteate (or bractlets 1–2), glabrous.

8–13;

corolla laminae 8–10 mm.

13 or 21;

corolla laminae 10–12+ mm.

60–75+;

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

40–60+;

corolla tubes 3–4 mm, limbs 2.5–3.5 mm.

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

(13–)21, dark green with yellow margins, 8–11+ mm, glabrous.

inconspicuous.

0 or inconspicuous.

3–6 in cymiform arrays.

3–6+ in compact, cymiform arrays.

2–2.5 mm, glabrous;

pappi 5–7 mm.

5–6 mm, glabrous;

pappi 5–7 mm.

= 46.