Flora of North America species comparison

mostly cauline; opposite;

petioles 0–1 mm, ciliate or not;

blades lance-linear to linear or filiform, 20–45(–60) × 1–2(–3+) mm, rarely with 1–2 lateral lobes.

petioles 0–1 mm;

blades simple or 3-foliolate, simple blades or leaflets ± lance-elliptic to narrowly lanceolate, 25–55(–100+) × (4–)6–15(–30+) mm (seldom lobed).

2–4(–6+) cm.

2–6+ cm.

pinkish to white, 9–15+ mm.

12–30+ mm.

40–60+;

corollas ochroleucous to yellow, 2.5–3 mm.

40–80+;

corollas yellow (often drying blackish to purplish), 6–7 mm.

deltate-ovate, 4.5–5.5 mm.

8, lance-oblong to lance-ovate, 6–8 mm.

of oblong to linear bractlets 1.5–2+ mm.

of 7–8 oblong to linear bractlets 3–6 mm.

narrowly oblong, 1.3–1.8 mm, not winged;

pappi 0.

obovate to oblong, 4–5 mm.

(± mid stem) 1–4(–5+) cm.

(± mid stem) 5–11 cm.

= 26.

= 26, 78, 104.