Flora of North America species comparison

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

1 or 2–5+, loosely clustered, glabrous or leaf axils sparsely tomentose.

(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 narrowly lanceolate (pinnatifid, lateral lobes 6+ pairs, their bases petioluliform, terminal lobes smaller than laterals), 60–100 × 10–20 mm, bases tapering, ultimate margins dentate.

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

gradually reduced (sessile).

bracteate, glabrous or sparsely tomentose.

bracteate or ebracteate, glabrous.

8 or 13;

corolla laminae 5–10 mm.

(8–)13;

corolla laminae 8–10+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

40–55+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

(13–)21, green (tips yellow), 4–6+ mm, glabrous.

conspicuous.

inconspicuous.

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

6–20+ in corymbiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–1.5 mm, hirtellous on ribs;

pappi 3.5–4.5 mm.

= 46, 92.