Flora of North America species comparison

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

1 or 2–3, clustered, glabrous or leaf axils sparsely 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) petiolate;

blades narrowly ovate to ovate (2–3 times pinnately dissected, ultimate lobes mostly linear to filiform), 50–80 × 30–50 mm, bases ± truncate or auriculate, ultimate margins entire or remotely dentate.

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

gradually reduced (petiolate or sessile, similar to basals).

bracteate, sparsely to densely lanate-tomentose.

bracteate or ebracteate, glabrous.

8 or 13;

corolla laminae 10–15 mm.

8–10(–13);

corolla laminae 8–12 mm.

35–50+;

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

35–50+;

corolla tubes 2–3 mm, limbs 1.5–2.5 mm.

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

(13–)21, green, 4–6 mm, glabrous (tips sometimes hair-tufted).

inconspicuous (bractlets tomentose).

0.

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

10–30+ in open, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 6–7 mm.

0.75–1.5 mm, hairy on ribs;

pappi 3–4 mm.

= 46.