Flora of North America species comparison

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

1 (often purplish), sparsely lanate or arachno-tomentose, glabrescent.

(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 lyrate to sublyrate (midribs winged) or ovate to orbiculate, 10–20+ × 30–50+ mm, bases tapering to contracted, ultimate margins ± dentate (faces glabrate at flowering).

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

gradually reduced (sessile; usually bractlike and entire, sometimes larger and pinnatifid).

bracteate, glabrous or sparsely tomentose.

conspicuously bracteate (bractlets red-tipped), densely lanate-tomentose.

8 or 13;

corolla laminae 5–10 mm.

8 or 13;

corolla laminae 5–10 mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

30–40+;

corolla tubes 2–3 mm, limbs 2.5–3.5 mm.

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

13 or 21, purplish, 6–9 mm, sparsely tomentose.

conspicuous.

conspicuous (bractlets reddish or purple).

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

borne singly or 2–6 in compact, cymiform arrays.

1–2.5 mm, glabrous;

pappi 3–6 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

= 46, 92.

= 46.