Flora of North America species comparison

1 or 2–5, loosely clustered, usually glabrous or glabrescent, sometimes sparsely tomentose throughout, axils (basal leaves) tomentose.

1, glabrous or bases hairy.

(and proximal cauline) petiolate;

blades obovate, oblanceolate, spatulate, or lyrate to sublyrate (± pinnately lobed, lateral lobes 3–6 pairs, smaller than terminal lobes), 40–80+ × 10–30+ mm, bases tapering, ultimate margins incised to dentate.

(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 (sessile).

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

conspicuously bracteate, glabrous or tomentose.

ebracteate (or bractlets 1–2), glabrous.

8–13;

corolla laminae 7–10 mm.

13 or 21;

corolla laminae 10–12+ mm.

40–50+;

corolla tubes 4–5 mm, limbs 3–4 mm.

40–60+;

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

13–21, green (tips often yellow), 4–9+ mm, glabrous or sparsely tomentose (at least proximally).

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

conspicuous.

0 or inconspicuous.

10–30+ in open, corymbiform or subumbelliform arrays.

3–6+ in compact, cymiform arrays.

2–3 mm, glabrous or hirtellous on ribs;

pappi 5–6 mm.

5–6 mm, glabrous;

pappi 5–7 mm.

= 46, 92.