Flora of North America species comparison

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

1, irregularly lanate or tomentose.

(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.

(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.

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

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

ebracteate or bracteate (bractlets inconspicuous), glabrous.

bracteate, lanate or tomentose distally.

8 or 13;

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

8–10(–13);

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

60–80+;

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

35–65+;

corolla tubes 4–5 mm, limbs 5–6 mm.

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

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

0 or inconspicuous.

conspicuous.

7–15+ in open, corymbiform arrays.

1–3+.

1–1.5 mm, glabrous;

pappi 3–5 mm.

1.5–2.5 mm, glabrous;

pappi 8–11 mm.

= 46.

= 40, 46, 92.