Annual, up to 25 cm tall; branches few, pilose, thin, 0.5-1.5 mm in diameter. Radical and cauline leaves linear, 1-5 cm x 1-2 mm, pilose, sessile. Inflorescence lax, 2-5-flowered. Pedicel c. 1 cm long, pubescent. Calyx segments linear-lanceolate, 2-5 mm long, calyx teeth about half the size of the calyx, pilose. Corolla campanulate, c. 1 cm long, lobes c. 1/3 the length of the corolla. Style included in the corolla. Capsule not seen.