Perennials, 10-30(-60+) cm. Aerial nodes proximal to first peduncle usually 1-3(-5+), distalmost 1-3 internodes 1-2(-8+) cm. Leaves: 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. Peduncles (8-)12-20(-35+) cm. Calyculi of lance-ovate to lance-linear or linear bractlets 4-8(-12) mm. Phyllaries deltate to lance-deltate, 8-12+ mm. Ray laminae yellow, 15-30+ mm. Disc corollas 6-7.5 mm, apices yellow. Cypselae (2.6-)3-4 mm, wings ± spreading, ± chartaceous, entire. 2n = 26 (+ 0-4B). Flowering (Mar-)May-Jul(-Aug). Sandy soils, ditches and roadsides, other disturbed sites; 30-500(-1000+) m; B.C., Ont.; Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mich., Miss., Mo., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Vt., Va., W.Va., Wis. Plants that have been called Coreopsis lanceolata var. villosa Michaux often have 5+ aerial internodes 6+ cm long proximal to the first peduncle; they may merit recognition as a distinct taxon or may be hybrids (or derivatives) from crosses between C. lanceolata and C. pubescens.