Flora of North America species comparison

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

1 or multiple, loosely clustered, usually glabrous, sometimes tomentose proximally and in leaf axils.

(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).

(and proximal cauline) petiolate;

blades orbiculate, ovate, or obovate, 40–100+ × 20–80+ mm, bases tapering, rounded, or abruptly contracted, margins crenate, dentate, or serrate.

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

gradually reduced (sessile, clasping; pinnatisect or sublyrate).

bracteate, glabrous or sparsely tomentose.

bracteate, glabrous or proximally tomentose.

8 or 13;

corolla laminae 5–10 mm.

8–13(–21);

corolla laminae 7–10 mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

40–50+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, green (tips sometimes reddish), 3–6 mm, glabrous or floccose-tomentose proximally.

conspicuous.

conspicuous.

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

6–15+ in open or congested, corymbiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–1.5 mm, glabrous or hirsute on ribs;

pappi 3–6 mm.

= 46, 92.

= 44, 88, 90.