Florida Greeneyes

Plants 20–50 cm. Stems unbranched or branched near bases. Leaves crowded near stem bases; petiolate or sessile; blades mostly oblanceolate to spatulate, usually alternately sinuate-pinnatifid, chartaceous, ultimate margins ± crenate, faces ± scabrous. Heads usually borne singly. Peduncles hairy (hispid and with wartlike hairs). Involucres 16–19+ mm diam. Ray corollas lemon yellow, abaxial veins green, laminae 10–12.6 × 5–7.8 mm. Disc corollas red to maroon. Cypselae (oval) 5.2–7 × 3–3.8 mm. 2n = 30.

Silphium subacaule Nuttall, Amer. J. Sci. Arts 5: 301. 1821; S. nuttallianum Torrey

Berlandiera subacaulis is a North American species of flowering plant in the family Asteraceae. It is found only in Florida. The common name is Florida greeneyes.

Berlandiera subacaulis is a branching herb up to 50 cm (20 inches) tall. It generally has only one flower head with lemon yellow ray florets and red or maroon disc florets. It grows in dry, sandy locations.