Coreopsis leavenworthii
Fl. N. Amer. 2: 346. 1842.
Annuals, (10–) 30–70 (–150+) cm. Leaves: 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. Peduncles 2–5 (–8) cm. Calyculi of deltate-ovate to oblong or linear bractlets 2–6+ mm. Phyllaries ± lance-oblong to lanceolate, (4–) 5–9 mm. Ray laminae usually yellow throughout, rarely with proximal redbrown blotch, 8–15+ mm. Disc corollas 2.2–3.5 mm. Cypselae 2–3 mm, wings 0.2–0.8+ mm wide; pappi of 2 subulate scales (0.2–) 0.4–1 (–1.4+) mm. 2n = 24 (+ 0–2 Bs).
Phenology: Flowering year round, mostly May–Jul.
Habitat: Moist, sandy soils, flatwoods, ditches
Elevation: 0–20+ m
Distribution
Fla.
Discussion
Plants here (and generally) treated as Coreopsis leavenworthii probably should be included within the circumscription adopted here for C. tinctoria.
Selected References
None.
Lower Taxa
"broader" is not a number.