Flora of North America species comparison

1, irregularly lanate or tomentose.

1 or 2–4, clustered, bases sparsely floccose-tomentose or glabrous, leaf axils tomentose.

(and proximal cauline) petiolate;

blades orbiculate, ovate, oblanceolate, or rhombic, 20–50+ × 20–40+ mm, bases tapering, sometimes obtuse, margins coarsely dentate to crenate-dentate.

(and proximal cauline, turgid) petiolate;

blades elliptic to ovate or subreniform, 20–40+ × 15–30+ mm, bases cuneate to subcordate, margins subentire or crenate to crenate-dentate.

gradually to abruptly reduced (petioles broad-winged, clasping, blades obovate, bases tapering, margins irregularly dentate; distal sessile, linear to lanceolate, entire).

gradually reduced (sessile; pinnately lobed, sinuses deep, rounded, ultimate margins entire or subentire).

bracteate, lanate or tomentose distally.

ebracteate (or bractlets short), glabrous or sparsely hairy.

8–10(–13);

corolla laminae (red-orange) 8–15+ mm.

0.

35–65+;

corolla tubes 4–5 mm, limbs 5–6 mm.

45–65+;

corolla tubes 3–4 mm, limbs 2–3 mm.

21, green (tips sometimes deep red), 8–10+ mm, densely tomentose proximally, sparsely tomentose distally.

13 or 21, green (tips cyanic), 6–8+ mm, glabrous.

conspicuous.

inconspicuous.

1–3+.

6–20 in open or compact, corymbiform arrays.

1.5–2.5 mm, glabrous;

pappi 8–11 mm.

1–2 mm, glabrous;

pappi 4.5–5.5 mm.

= 40, 46, 92.

= 46.