Dyssodia belenidium de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 7: 292. 1838; D. pentachaeta (de Candolle) B. L. Robinson var. belenidium (de Candolle) Strother; D. thurberi (A. Gray) B. L. Robinson

Leaves 10–20 mm overall, lobes 3–7, subequal. Peduncles 20–50 mm. Calyculi of 3–5 bractlets. Involucres obconic to campanulate, 4.5–6 × 4–5 mm. Phyllaries ca. 13, margins of outer distinct almost to bases, abaxial faces glabrous (margins ciliate). Disc florets 50–70. Pappi usually of 10, 3-aristate scales, sometimes of 5 muticous scales alternating with 5, 3-aristate scales. 2n = 32 (Argentina).

Flowering spring–summer. Sandy or rocky soils of desert washes and fans, commonly with limestone, often ruderal along roadways; 500–2500+ m; Ariz., Calif., Nev., N.Mex., Tex., Utah; Mexico; South America (Argentina).