Flora of North America species comparison

1 or multiple, clustered, usually glabrous, rarely sparsely floccose-tomentose, leaf axils sometimes tomentose.

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

(and proximal cauline, relatively thick and turgid) petiolate;

blades lanceolate or narrowly oblanceolate, 20–40+ × 5–15 mm, bases tapering, margins usually entire, sometimes sub-pinnatisect (apices subentire or dentate).

(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.

gradually reduced (± petiolate or sessile).

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

bracteate, glabrous or sparsely tomentose.

bracteate, sparsely to densely lanate-tomentose.

8–10(–13);

corolla laminae 5–8+ mm.

8 or 13;

corolla laminae 10–15 mm.

45–60+;

corolla tubes 3–3.5 mm, limbs 4–5 mm.

35–50+;

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

13 or 21, green, 6–10 mm, sparsely tomentose proximally, glabrous distally.

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

inconspicuous.

inconspicuous (bractlets tomentose).

4–15+ in corymbiform arrays.

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

1.5–2.5 mm, glabrous or sparsely hirtellous on ribs;

pappi 5–6 mm.

1–1.5 mm, glabrous;

pappi 6–7 mm.

= 46.

= 46.