Flora of North America species comparison

1 (striated, frequently hollow, often pink- to purple-tinged), glabrous or leaf axils sparsely tomentose.

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

(and proximal cauline) obscurely petiolate;

blades obovate to oblanceolate, sometimes lyrate (lateral lobes to 5 pairs, terminal lobes larger than laterals), 50–150+ × 10–30+ mm, bases tapering, ultimate margins crenate to irregularly undulate.

(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.

gradually reduced (weakly clasping, similar to basal).

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

bracteate, glabrous or bases tomentose.

ebracteate, glabrous.

(8–)13;

corolla laminae 7–9 mm.

(8–)13;

corolla laminae 6–10+ mm.

35–50+;

corolla tubes 2.5–3.5 mm, limbs 2–3 mm.

60–70+;

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

(13–)21, green, 5–7 mm, glabrous.

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

conspicuous (bractlets 2.5–4 mm).

inconspicuous.

8–30+ in umbelliform or cymiform arrays (robust plants with multiple arrays).

15–40+ in open, cymiform arrays.

1–1.5 mm, sparsely hirtellous on ribs or glabrous;

pappi 3–4 mm.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

= 46.

= 92.