Flora of North America species comparison

1 or, usually, multiple, clustered, densely tomentose to glabrescent.

1, glabrous or bases hairy.

(soon withering), petiolate;

blades lyrate (lateral lobes 2–6+ pairs), ovate, obovate, or spatulate, 70–100+ × 20–30+ mm, bases tapering, ultimate margins irregularly and coarsely serrate-dentate.

(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 (± petiolate, proximal and mid similar to basal, terminal lobes smaller than laterals; distal sessile, incised).

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

bracteate, sparsely to densely lanate-tomentose.

ebracteate (or bractlets 1–2), glabrous.

8 or 13;

corolla laminae 10–15 mm.

13 or 21;

corolla laminae 10–12+ mm.

35–50+;

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

40–60+;

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

13 or 21, green (tips sometimes yellow), 8–10+ mm, densely tomentose proximally, glabrescent distally.

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

inconspicuous (bractlets tomentose).

0 or inconspicuous.

5–20+ in open or compact (rarely), cymiform arrays.

3–6+ in compact, cymiform arrays.

1–1.5 mm, glabrous;

pappi 6–7 mm.

5–6 mm, glabrous;

pappi 5–7 mm.

= 46.