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 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 ovate, oblanceolate, or spatulate, 10–30 × 5–20 mm, bases tapering, sometimes obtuse, margins entire, subentire, or dentate.

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

abruptly reduced (sessile, clasping; bractlike, entire).

ebracteate, glabrous.

bracteate (bractlets red-tinged), densely lanate-tomentose.

(8–)13;

corolla laminae 6–10+ mm.

(8–)13;

corolla laminae 6–10+ mm.

60–70+;

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

35–50+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

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

(13–)21, green (tips red or dark red), densely tomentose proximally.

inconspicuous.

conspicuous (bractlets narrow, red-tinged).

15–40+ in open, cymiform arrays.

1–4+ in corymbiform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 92.

= 46.