Flora of North America species comparison

1, glabrous or leaf axils tomentose.

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

(and proximal cauline) petiolate;

blades spatulate to obovate (pinnately lobed, terminal lobes ovate to oblong, lateral lobes 2–6+ pairs, smaller, midribs narrowly winged), 100–300+ × 20–50(–80+) mm, bases contracted to tapering, ultimate margins crenate or dentate to lacerate (faces glabrous).

(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.

gradually reduced (petiolate or sessile; obovate, irregularly incised to subpinnate, terminal lobes narrow).

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

usually ebracteate (rarely with 1–2 bractlets), glabrous.

inconspicuously bracteate, glabrous or tomentose proximally.

8–10+;

corolla laminae 10–15+ mm.

8;

corolla laminae 6–12 mm.

45–60+;

corolla tubes 3–3.5 mm, limbs 4–4.5 mm.

35–50+;

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

13 or 21, green, 7–9+ mm, glabrous.

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

inconspicuous.

inconspicuous.

15–50+ in corymbiform arrays.

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

2–2.5 mm, glabrous;

pappi 6–7 mm.

1.5–2 mm, glabrous;

pappi 4.5–5.5 mm.

= 46.

= 46.