Flora of North America species comparison

1 or 2–3, clustered, glabrous or leaf axils tomentose.

1 (often branched proximally, sometimes distally), sparsely to densely floccose-tomentose.

(and proximal cauline) petiolate;

blades broadly oblanceolate (pinnately lobed, lateral lobes 2–3+ pairs, their bases petioluliform, terminal lobes larger than laterals, ovate to reniform, midribs not winged), 60–120+ × 20–60 mm, bases contracted, ultimate margins crenate to crenate-dentate.

petiolate;

blades elliptic to oblanceolate or ovate, 20–80+ × 20–60+ mm, bases tapering, margins entire, crenate-serrate, or irregularly to pinnately lobed (abaxial faces white-tomentose, adaxials patchy tomentose to glabrate).

gradually reduced (petiolate or sessile; lyrate to sublyrate, midribs winged, terminal lobes weakly distinct, shallowly dentate).

gradually to abruptly reduced (sessile; mids lanceolate to oblanceolate, irregularly serrate to pinnately lobed, distals bractlike).

inconspicuously bracteate, glabrous or tomentose proximally.

bracteate, ± tomentose.

8;

corolla laminae 6–12 mm.

10–13+;

corolla laminae 8–12+ mm.

35–50+;

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

60–70+;

corolla tubes 1–1.5 mm, limbs 2–2.5 mm.

13, bright green (tips light green to yellow), 4–7 mm, glabrous.

13 or 21, green (sometimes with purple streaks, tips usually purple), 4–8 mm, proximally tomentose, rarely glabrous.

inconspicuous.

conspicuous (bractlets purple-tinged).

3–8+ in subumbelliform or compound, cymiform arrays (of 2–4+ cymiform clusters of 2–5+ heads each).

1(–3).

1.5–2 mm, glabrous;

pappi 4.5–5.5 mm.

1–1.5 mm, glabrous;

pappi 2.5–3 mm.

= 46.

= 92.