Flora of North America species comparison

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

usually 1 (sometimes more, clustered), glaucous.

(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 thick and turgid) petiolate;

blades lanceolate to narrowly oblanceolate, 30–100+ × 10–20+ mm, bases tapering, margins entire or subentire.

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

gradually reduced (sessile and weakly clasping; lanceolate, entire).

bracteate, sparsely to densely lanate-tomentose.

conspicuously bracteate, glaucous.

8 or 13;

corolla laminae 10–15 mm.

8–10(–13);

corolla laminae 5–7 mm.

35–50+;

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

25–40+;

corolla tubes 2–3 mm, limbs 3–4 mm.

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

(13) 21, green (tips often purple), glabrous.

inconspicuous (bractlets tomentose).

conspicuous.

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

12–20+ in open, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 6–7 mm.

1–1.5 mm, glabrous;

pappi 5–6 mm.

= 46.

= 46.