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25. Coreopsis integrifolia Poiret in J. Lamarck et al., Encycl., Suppl. 2: 353. 1811.
Perennials, 40–60 cm. Internodes (± mid stem) 3–8 cm. Leaves mostly cauline; opposite; petioles 5–15 mm, ciliate; blades elliptic to lanceolate, 20–45+ × 9–18+ mm, not lobed. Peduncles 3–8+ cm. Calyculi of ± oblong to linear bractlets 3–5 mm. Phyllaries lance-ovate, 7–8+ mm. Ray laminae yellow, 20–25+ mm. Disc florets 45–80+; corollas purplish or purple-tipped, 2.8–3.7 mm. Cypselae narrowly obovate, 4–4.5 mm, winged, wings 0.1 mm wide, ± pectinate; pappi of 2 cusps 0.1–0.2 mm. 2n = 26.
Flowering Sep–Oct. Low woodlands, flood plains; 0–50 m; Fla., Ga., N.C., S.C.
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