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 (or 5–25+ mm, winged, and scarcely distinct from blades);

blades not 3-foliolate, most with 3(–5+), ± oblong to linear lobes (5–)15–40+ × 2–3(–7+) mm (sometimes some leaves not lobed).

2–4(–6+) cm.

1–4+ cm.

pinkish to white, 9–15+ mm.

15–25+ mm.

40–60+;

corollas ochroleucous to yellow, 2.5–3 mm.

60–80+;

corollas yellow (sometimes drying blackish), 5–6.5 mm.

deltate-ovate, 4.5–5.5 mm.

8, ± oblong to nearly orbiculate, 6–10 mm.

of oblong to linear bractlets 1.5–2+ mm.

of 9–12+ oblong to lanceolate bractlets 3–9+ mm.

narrowly oblong, 1.3–1.8 mm, not winged;

pappi 0.

oblong, 5–6 mm.

(± mid stem) 1–4(–5+) cm.

(± mid stem) 25–50 mm.

= 26.

= 26.