Flora of North America species comparison

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

usually 1, sometimes multiple, bases and leaf axils tomentose, otherwise glabrous.

(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 oblanceolate to obovate or lyrate (pinnately lobed to pinnatifid, terminal lobes larger than laterals), 10–30+ × 10–20+ mm, bases tapering, ultimate margins ± crenate to serrate.

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

gradually to abruptly reduced (sessile; pinnatisect or entire).

bracteate, glabrous or sparsely tomentose.

bracteate (bractlets purple-tinged), glabrous or glabrate.

8 or 13;

corolla laminae 5–10 mm.

0 (rarely) or 10–12;

corolla laminae 8–10 mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

45–60+;

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

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

13, green (sometimes purple-tinged distally), 6–8 mm, glabrous.

conspicuous.

0 or inconspicuous (bractlets purple-tinged).

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

1–2(–5+) in cymiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1.5–2.5 mm, hirtellous on ribs;

pappi 6–7 mm.

= 46, 92.

= 46.