Flora of North America species comparison

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

usually 1 or 2–5, rarely 6–20, clustered, glabrous but for tomentose leaf axils.

(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.

petiolate;

blades elliptic-ovate, broadly oblanceolate, or lyrate (lateral lobes 3–9 pairs), 40–70 × 15–25 mm, bases tapering, margins irregularly and deeply parted or lobed (apices incised).

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

usually gradually, sometimes abruptly, reduced (petiolate or sessile; narrowly elliptic to oblanceolate, pinnatifid).

bracteate, sparsely to densely lanate-tomentose.

ebracteate or bracteate, glabrous.

8 or 13;

corolla laminae 10–15 mm.

(10–)13;

corolla laminae 5–7+ mm.

35–50+;

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

60–75+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, light green, 4–6+ mm, glabrous.

inconspicuous (bractlets tomentose).

usually 0, sometimes inconspicuous.

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

3–20+ in open or congested, corymbiform arrays, frequently subtended by smaller arrays from leaf axils.

1–1.5 mm, glabrous;

pappi 6–7 mm.

1–1.5 mm, hirsute on ribs;

pappi 3–5 mm.

= 46.

= 36.