Flora of North America species comparison

usually 1, rarely 2–3, clustered, glabrous.

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

(and proximal cauline) petiolate (petioles narrow);

blades narrowly lanceolate or ovate to oblong-ovate, 20–60+ × 10–40+ mm, bases abruptly contracted to tapering, margins subentire to crenate-dentate.

(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, weakly clasping; lanceolate to oblong or sublyrate, often pinnately lobed).

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

ebracteate or bracteate (bractlets inconspicuous), glabrous.

conspicuously bracteate, glabrous.

8 or 13;

corolla laminae (deep yellow to orange-red) 6–8+ mm.

10–12;

corolla laminae 8–14+ mm.

60–80+;

corolla tubes 4.5–5.5 mm, limbs 2.5–3.5 mm.

55–75+;

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

13 or 21, light green (or tips cyanic), 4–8 mm, glabrous.

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

0 or inconspicuous.

conspicuous (tips of bractlets often purple).

7–15+ in open, corymbiform arrays.

1–2(–5+).

1–1.5 mm, glabrous;

pappi 3–5 mm.

1–1.25 mm, glabrous;

pappi 4–7 mm.

= 46.

= 160+.