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.

proximal blades usually 1(–2)-pinnate, terminal lobes ± elliptic or oblanceolate to lanceolate or linear, 15–30+ × 4–8(–12+) mm;

cauline blades simple or 1(–3)-pinnate, simple blades or terminal lobes narrowly oblanceolate to linear, 8–35(–70+) × 1–3(–5) mm.

2–4(–6+) cm.

2–5(–8) cm.

pinkish to white, 9–15+ mm.

usually yellow throughout, rarely with proximal red-brown blotch, 8–15+ mm.

40–60+;

corollas ochroleucous to yellow, 2.5–3 mm.

2.2–3.5 mm.

deltate-ovate, 4.5–5.5 mm.

± lance-oblong to lanceolate, (4–)5–9 mm.

of oblong to linear bractlets 1.5–2+ mm.

of deltate-ovate to oblong or linear bractlets 2–6+ mm.

narrowly oblong, 1.3–1.8 mm, not winged;

pappi 0.

2–3 mm, wings 0.2–0.8+ mm wide;

pappi of 2 subulate scales (0.2–)0.4–1(–1.4+) mm.

(± mid stem) 1–4(–5+) cm.

= 26.

= 24 (+ 0–2 Bs).