Flora of North America species comparison

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

1, glabrous or bases hairy.

(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).

(and proximal cauline, relatively turgid or leathery) petiolate;

blades reniform to suborbiculate, 40–70+ × 40–80+ mm, bases truncate to cordate, margins dentate or shallowly lobed.

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

abruptly reduced (petiolate or sessile, oblanceolate, pinnatifid; distal sessile, bractlike).

conspicuously bracteate, sparsely to densely tomentose.

ebracteate (or bractlets 1–2), glabrous.

8–10;

corolla laminae 9–10 mm.

13 or 21;

corolla laminae 10–12+ mm.

60–70+;

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

40–60+;

corolla tubes 3–4 mm, limbs 2.5–3.5 mm.

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

(13–)21, dark green with yellow margins, 8–11+ mm, glabrous.

inconspicuous.

0 or inconspicuous.

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

3–6+ in compact, cymiform arrays.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

5–6 mm, glabrous;

pappi 5–7 mm.

= 46, 92.