Flora of North America species comparison

1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils.

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

(and proximal cauline, relatively thick and turgid) petiolate;

blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy).

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 to abruptly reduced (± petiolate or sessile; entire or subentire).

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

bracteate, glabrous or sparsely tomentose.

bracteate, loosely tomentose or glabrescent.

8 or 13;

corolla laminae 5–10 mm.

8 or 13;

corolla laminae 5–8 mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

50–65+;

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

(8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous.

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

conspicuous.

0.

2–20+ in loose, corymbiform or subumbelliform arrays.

3–9+ in open, corymbiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–2 mm, glabrous;

pappi 3.5–4.5 mm.

= 46, 92.

= 44.