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.

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or glabrescent.

(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, relatively turgid) petiolate;

blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).

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

gradually reduced (sessile; bractlike, entire).

ebracteate, glabrous.

bracteate, irregularly tomentose.

(8–)13;

corolla laminae 6–10+ mm.

8–13;

corolla laminae 8–10 mm.

60–70+;

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

60–75+;

corolla tubes 2.5–4 mm, limbs 3.5–5 mm.

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

(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).

inconspicuous.

inconspicuous.

15–40+ in open, cymiform arrays.

3–6 in cymiform arrays.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

2–2.5 mm, glabrous;

pappi 5–7 mm.

= 92.

= 46.