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.

lobes linear, 3–30 × 0.5–3 mm.

2–4(–6+) cm.

5–25+ cm.

(5–)8+;

laminae 12–20(–30) mm.

pinkish to white, 9–15+ mm.

40–60+;

corollas ochroleucous to yellow, 2.5–3 mm.

(12–)40–100+;

corollas 4–6.6 mm.

deltate-ovate, 4.5–5.5 mm.

(5–)8, lance-ovate to lanceolate, 6–10+ mm.

of oblong to linear bractlets 1.5–2+ mm.

of 3–5 ovate-deltate bractlets (3–)4–6 mm.

narrowly oblong, 1.3–1.8 mm, not winged;

pappi 0.

oblanceolate to linear, 5–6 mm;

pappi 3–4(–5) mm.

± oblong, 4–6 mm.

(± mid stem) 1–4(–5+) cm.

seldom basally adnate to and falling with disc cypselae.

= 26.

= 24.