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, glabrous or leaf axils sparsely tomentose.

(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 narrowly ovate to oblong-lanceolate, 30–70+ × 10–20+ mm, bases abruptly contracted to subcordate, margins usually serrate-dentate, sometimes subcrenate (apices acute).

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

gradually reduced (± sessile; lacerate to subcrenate).

ebracteate, glabrous.

bracteate, glabrous.

(8–)13;

corolla laminae 6–10+ mm.

8–13;

corolla laminae 4–7 mm.

60–70+;

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

50–70+;

corolla tubes 3.5–4 mm, limbs 3–3.5 mm.

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

13 or 21, light green (tips sometimes black), 5–8 mm, glabrous.

inconspicuous.

conspicuous.

15–40+ in open, cymiform arrays.

8–20+ in loose, corymbiform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

= 92.

= 44.