Berlandiera lyrata A. Gray var. monocephala B. L. Turner, Phytologia 64: 205, fig. 1. 1988

Plants 10–100 cm (taproots much thickened). Stems unbranched or branched near bases. Leaves crowded near stem bases; petiolate; blades oblanceolate, rarely pinnatifid, membranous, margins usually crenate, faces velvety. Heads usually borne singly, rarely 2–3 together. Peduncles hairy (hairs whitish, matted). Involucres 15–35 mm diam. Ray corollas yellow, abaxial veins green, laminae 9–12 × 4.5–6 mm. Disc corollas yellow. Cypselae (obovate) 5–6 × 3–4 mm. 2n = 30.

Flowering May–Oct. Grasslands on rolling hills, often with oak, pinyon, and juniper; 1300–2100 m; Ariz.; Mexico (Chihuahua, Sonora).

Roots of Berlandiera monocephala are sold in local Mexican drugstores for stomach and lung troubles (B. L. Turner 1988d) and for insect or snake bites.