Flora of North America species comparison

basal and cauline on proximal 1/4–1/3(–1/2) of plant heights;

petioles 1–5(–8+) cm;

blades simple or with 1–2+ lateral lobes, simple blades or terminal lobes lance-ovate or lanceolate to oblanceolate or lance-linear, 5–12 cm × 8–15(–18+) mm.

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.

(8–)12–20(–35+) cm.

2–4(–6+) cm.

yellow, 15–30+ mm.

pinkish to white, 9–15+ mm.

6–7.5 mm, apices yellow.

40–60+;

corollas ochroleucous to yellow, 2.5–3 mm.

deltate to lance-deltate, 8–12+ mm.

deltate-ovate, 4.5–5.5 mm.

of lance-ovate to lance-linear or linear bractlets 4–8(–12) mm.

of oblong to linear bractlets 1.5–2+ mm.

(2.6–)3–4 mm, wings ± spreading, ± chartaceous, entire.

narrowly oblong, 1.3–1.8 mm, not winged;

pappi 0.

nodes proximal to first peduncle usually 1–3(–5+), distalmost 1–3 internodes 1–2(–8+) cm.

(± mid stem) 1–4(–5+) cm.

= 26 (+ 0–4B).

= 26.