Flora of North America species comparison

1 or 2–4, loosely clustered, glabrous or sparsely tomentose proximally.

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

petiolate;

blades lanceolate to narrowly elliptic or oblanceolate, 30–60+ × 10–20+ mm, bases tapering, sometimes obtuse, margins subentire to dentate or serrate.

(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 (proximals petiolate, sublyrate; mids sessile, not clasping, lanceolate, dissected, incised, or lacerate; distals sessile, bractlike).

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

usually bracteate, sometimes ebracteate, glabrous.

ebracteate or bracteate (bractlets inconspicuous), glabrous.

0, 8, or 13;

corolla laminae (pale yellow) 5–10+ mm.

8 or 13;

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

50–65+;

corolla tubes 2–3 mm, limbs 2–3 mm.

60–80+;

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

13 or 21, green, 5–8+ mm, glabrous.

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

inconspicuous.

0 or inconspicuous.

2–10+ in loose or compact, corymbiform arrays.

7–15+ in open, corymbiform arrays.

1–2 mm, usually glabrous, sometimes hispidulous on ribs;

pappi 3.5–4.5 mm.

1–1.5 mm, glabrous;

pappi 3–5 mm.

= 44, 46, 92.

= 46.