Flora of North America species comparison

1 or 2–4, loosely clustered, glabrous or sparsely tomentose proximally.

1 or 2–3, clustered, bases and leaf axils usually loosely floccose-tomentose, sometimes glabrate.

petiolate;

blades lanceolate to narrowly elliptic or oblanceolate, 30–60+ × 10–20+ mm, bases tapering, sometimes obtuse, margins subentire to dentate or serrate.

petiolate;

blades ovate to obovate or suborbiculate, 30–80 × 20–40+ mm, bases tapering, sometimes obtuse or contracted, margins serrate-dentate to weakly crenate (abaxial faces sometimes hairy).

gradually reduced (proximals petiolate, sublyrate; mids sessile, not clasping, lanceolate, dissected, incised, or lacerate; distals sessile, bractlike).

gradually reduced (petiolate, often sublyrate, sometimes weakly pinnatisect; mids and distals sessile, pinnatisect to subentire).

usually bracteate, sometimes ebracteate, glabrous.

bracteate, loosely tomentose or glabrescent.

0, 8, or 13;

corolla laminae (pale yellow) 5–10+ mm.

8 or 13;

corolla laminae 5–8 mm.

50–65+;

corolla tubes 2–3 mm, limbs 2–3 mm.

50–65+;

corolla tubes 2–4 mm, limbs 2.5–3.5 mm.

13 or 21, green, 5–8+ mm, glabrous.

(13–)21, green, 5–7 mm, glabrous or sparsely tomentose.

inconspicuous.

0.

2–10+ in loose or compact, corymbiform arrays.

3–9+ in open, corymbiform arrays.

1–2 mm, usually glabrous, sometimes hispidulous on ribs;

pappi 3.5–4.5 mm.

1–2 mm, glabrous;

pappi 3.5–4.5 mm.

= 44, 46, 92.

= 44.