Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous.

1 or 2–3, clustered, floccose-tomentose proximally and in leaf axils, otherwise sparsely tomentose or glabrescent.

(and proximal cauline) petiolate;

blades ± orbiculate to oblong, or lyrate (lateral lobes 1–3 pairs, sinuses usually rounded, midribs usually winged), 50–120+ × 30–70+ mm, bases cordate to subcordate, margins shallowly to deeply incised.

(and proximal cauline) petiolate;

blades narrowly elliptic to elliptic-ovate or oblanceolate to suborbiculate or sublyrate, 20–70+ × 10–30+ mm, bases tapering to rounded or abruptly contracted, margins subentire to crenate, serrate-dentate, or pinnately lobed (abaxial faces floccose-tomentose, especially along midribs, ± glabrescent).

gradually reduced (petiolate or sessile and clasping; lanceolate, incised).

gradually reduced (petiolate, sublyrate or pinnatisect, abaxial faces sparsely hairy; distals sessile, subentire to irregularly dissected).

ebracteate or inconspicuously bracteate, glabrous.

conspicuously bracteate, sparsely to densely tomentose.

8 or 13;

corolla laminae 10–15+ mm.

8–10;

corolla laminae 9–10 mm.

30–45+;

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

60–70+;

corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.

(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.

13 or 21, green (tips sometimes cyanic), 5–6+ mm, densely tomentose proximally, glabrescent distally.

conspicuous.

inconspicuous.

8–15+ in corymbiform or subumbelliform arrays.

6–20+ in open or congested, corymbiform arrays.

2.5–3.5 mm, glabrous;

pappi 5–7 mm.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

= 46.

= 46, 92.