Flora of North America species comparison

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

1 (often branched proximally, sometimes distally), sparsely to densely floccose-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.

petiolate;

blades elliptic to oblanceolate or ovate, 20–80+ × 20–60+ mm, bases tapering, margins entire, crenate-serrate, or irregularly to pinnately lobed (abaxial faces white-tomentose, adaxials patchy tomentose to glabrate).

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

gradually to abruptly reduced (sessile; mids lanceolate to oblanceolate, irregularly serrate to pinnately lobed, distals bractlike).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

bracteate, ± tomentose.

8 or 13;

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

10–13+;

corolla laminae 8–12+ mm.

60–80+;

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

60–70+;

corolla tubes 1–1.5 mm, limbs 2–2.5 mm.

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

13 or 21, green (sometimes with purple streaks, tips usually purple), 4–8 mm, proximally tomentose, rarely glabrous.

0 or inconspicuous.

conspicuous (bractlets purple-tinged).

7–15+ in open, corymbiform arrays.

1(–3).

1–1.5 mm, glabrous;

pappi 3–5 mm.

1–1.5 mm, glabrous;

pappi 2.5–3 mm.

= 46.

= 92.