Flora of North America species comparison

1, glabrous or leaf axils sparsely tomentose.

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

(and proximal cauline) petiolate;

blades narrowly ovate to oblong-lanceolate, 30–70+ × 10–20+ mm, bases abruptly contracted to subcordate, margins usually serrate-dentate, sometimes subcrenate (apices acute).

(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 reduced (± sessile; lacerate to subcrenate).

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

bracteate, glabrous.

conspicuously bracteate, glabrous.

8–13;

corolla laminae 4–7 mm.

10–12;

corolla laminae 8–14+ mm.

50–70+;

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

55–75+;

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

13 or 21, light green (tips sometimes black), 5–8 mm, glabrous.

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

conspicuous.

conspicuous (tips of bractlets often purple).

8–20+ in loose, corymbiform arrays.

1–2(–5+).

1–1.5 mm, glabrous;

pappi 5–5.5 mm.

1–1.25 mm, glabrous;

pappi 4–7 mm.

= 44.

= 160+.