Flora of North America species comparison

1 or 2–4, clustered (proximally deeply purple-tinged, distally lightly tinged), glabrous or tomentose at bases and in leaf axils.

1 or multiple, loosely clustered, usually glabrous, sometimes tomentose proximally and in leaf axils.

(and proximal cauline) petiolate;

blades obovate or lyrate (pinnately lobed, lateral lobes 2–6+ pairs, their bases petioluliform, terminal lobes larger than laterals, midribs narrowly winged), 60–160+ × 20–40+ mm, bases wide, ultimate margins sharply dentate, crenate-dentate, or irregularly incised.

(and proximal cauline) petiolate;

blades orbiculate, ovate, or obovate, 40–100+ × 20–80+ mm, bases tapering, rounded, or abruptly contracted, margins crenate, dentate, or serrate.

gradually reduced (petiolate or sessile; shallowly lobed, midribs ± winged, distals bractlike, dentate to incised).

gradually reduced (sessile, clasping; pinnatisect or sublyrate).

ebracteate, glabrous.

bracteate, glabrous or proximally tomentose.

(8–)13;

corolla laminae 6–10+ mm.

8–13(–21);

corolla laminae 7–10 mm.

60–70+;

corolla tubes 2–3 mm, limbs 3.5–4.5 mm.

40–50+;

corolla tubes 2–3 mm, limbs 2–3 mm.

(13–)21, green (tips yellow), 5–7 mm, glabrous (tips sometimes hairy).

13 or 21, green (tips sometimes reddish), 3–6 mm, glabrous or floccose-tomentose proximally.

inconspicuous.

conspicuous.

15–40+ in open, cymiform arrays.

6–15+ in open or congested, corymbiform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

1–1.5 mm, glabrous or hirsute on ribs;

pappi 3–6 mm.

= 92.

= 44, 88, 90.