Leptosyne californica Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 363. 1841; Coreopsis californica subsp. newberryi (A. Gray) E. Murray; C. californica var. newberryi (A. Gray) E. B. Smith

Annuals, 5–20(–30+) cm. Leaf blades simple or 1(–2)-pinnately lobed, terminal lobes filiform, 0.5–1(–1.5) mm wide. Peduncles 5–15(–30+) cm. Calyculi of (3–)5–8 linear bractlets 3–7+ mm, not ciliolate near bases. Phyllaries 5–8, obovate to oblanceolate, 4–6(–7+) mm. Ray florets (5–)8(–12+); laminae 7–10(–15+) mm. Disc florets 20–60(–100+); corollas 2–3.6 mm. Cypselae ± oblong, (2.5–)3–4+ mm, marked adaxially with red dots or dashes, wings corky-thickened, faces ± tuberculate and/or hirtellous. 2n = 24.

Flowering Feb–Jun. Openings in desert scrub, stabilized dunes; 300–1000 m; Ariz., Calif.

Coreopsis californica may occur sporadically in New Mexico.