Flora of North America species comparison

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

usually 1 or 2–5, rarely 6–20, clustered, glabrous but for tomentose 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).

petiolate;

blades elliptic-ovate, broadly oblanceolate, or lyrate (lateral lobes 3–9 pairs), 40–70 × 15–25 mm, bases tapering, margins irregularly and deeply parted or lobed (apices incised).

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

usually gradually, sometimes abruptly, reduced (petiolate or sessile; narrowly elliptic to oblanceolate, pinnatifid).

bracteate, glabrous or sparsely tomentose.

ebracteate or bracteate, glabrous.

8 or 13;

corolla laminae 5–10 mm.

(10–)13;

corolla laminae 5–7+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

60–75+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, light green, 4–6+ mm, glabrous.

conspicuous.

usually 0, sometimes inconspicuous.

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

3–20+ in open or congested, corymbiform arrays, frequently subtended by smaller arrays from leaf axils.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–1.5 mm, hirsute on ribs;

pappi 3–5 mm.

= 46, 92.

= 36.