Flora of North America species comparison

1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, or glabrescent.

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

(thick, leathery) petiolate;

blades narrowly lanceolate or oblanceolate, 25–100+ × 5–20 mm, bases tapering, margins entire, subentire, dentate, or wavy (adaxial faces early glabrescent).

(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.

gradually reduced (sessile; lanceolate to oblanceolate, entire or wavy).

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

0 (or relatively reduced, then densely tomentose).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

(5–)8;

corolla laminae 8–10+ mm.

8 or 13;

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

35–45+;

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

60–80+;

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

(8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally.

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

inconspicuous (bractlets red-tipped).

0 or inconspicuous.

10–30+ in open or congested, cymiform arrays.

7–15+ in open, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 5–6 mm.

1–1.5 mm, glabrous;

pappi 3–5 mm.

= 46.

= 46.