Stems ± prostrate to decumbent, pale green, 1–3 dm. Herbage pubescent, hairs dendritic, eglandular. Leaves subsessile; blade linear-lanceolate to rhom­bic, 2–5 × 1–2 cm, length 2–2.5 times width, margins deeply lobed. Inflorescences 1–5-flowered. Flowers: calyx 4–5 mm, densely pubescent, hairs mostly relatively long; corolla 5–15 mm diam. Berries 8–10 mm diam. 2n = 48.

Flowering Mar–Oct (mostly late spring–early summer, depending on rain). Dry grasslands, prairies; 100–400 m; Okla., Tex.

Chamaesaracha darcyi is known from the Rolling Plains of north-central Texas and extends to the Cross Timbers region of Texas and Oklahoma. It is very close to C. coniodes, having a dense vestiture of branched, dendritic hairs like those found on the type of C. coniodes; C. darcyi typically has more deeply incised leaf margins and a nearly prostrate habit.