Flora of North America species comparison

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

usually 1, sometimes 2, densely tomentose (at least proximally), becoming glabrate distally.

(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.

(relatively leathery) sessile;

blades linear, 10–15+ × 1–2 mm, margins entire (revolute).

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

abruptly reduced (linear, bractlike).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

bracteate, tomentose or glabrate.

8 or 13;

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

0 or 5–8;

corolla laminae 4–7 mm.

60–80+;

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

30–40+;

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

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

13, purple to deep reddish purple, 6–9+ mm, hairy or glabrescent.

0 or inconspicuous.

conspicuous.

7–15+ in open, corymbiform arrays.

1(–2).

1–1.5 mm, glabrous;

pappi 3–5 mm.

3–3.5 mm, hirtellous;

pappi 5–6 mm.

= 46.