Flora of North America species comparison

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

1 or 2–3, clustered, bases floccose-tomentose, leaf axils tomentose, glabrous elsewhere.

(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).

(thick, fleshy) petiolate;

blades usually ovate, oblong, or spatulate, sometimes sublyrate, 20–50+ × 20–40+ mm, bases tapering (to winged petioles) or abruptly contracted to subcordate (petioles narrow), margins crenate, coarsely serrate, or subentire.

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

(often cyanic) gradually reduced (sessile, not clasping; lanceolate to linear, usually irregularly and shallowly lobed, rarely entire).

bracteate, glabrous or sparsely tomentose.

conspicuously bracteate, glabrous.

8 or 13;

corolla laminae 5–10 mm.

10–12;

corolla laminae 8–14+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

55–75+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

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

21, deep red or green (tips reddish), 8–12+ mm, white-tomentose proximally.

conspicuous.

conspicuous (tips of bractlets often purple).

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

1–2(–5+).

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–1.25 mm, glabrous;

pappi 4–7 mm.

= 46, 92.

= 160+.