Flora of North America species comparison

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

1 (often cyanic), glabrous.

(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.

(relatively turgid, abaxial faces cyanic) petiolate;

blades reniform to subreniform, 5–15+ × 5–25+ mm, bases abruptly contracted to cordate, margins usually crenate, sometimes wavy.

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

abruptly reduced (1–4, sessile; bractlike, entire).

bracteate, sparsely to densely lanate-tomentose.

ebracteate, glabrous.

8 or 13;

corolla laminae 10–15 mm.

8 or 13;

corolla laminae 8–10+ mm.

35–50+;

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

40–50+;

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

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

13 or 21, deep red, 8–10+ mm, glabrous.

inconspicuous (bractlets tomentose).

conspicuous (bractlets often cyanic).

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

borne singly.

1–1.5 mm, glabrous;

pappi 6–7 mm.

1.5–2.5 mm, glabrous;

pappi 4–5.5 mm.

= 46.