Annual, small, slender herb, velvety and appressed-pubescent, simple or branched, 3–15 cm tall. Leaves are petiolate to sessile, linear, and entire, 15–35 mm long and 3–7 mm wide. Flowers are small, blue, and pedicellate, arranged in terminal racemes. Calyx has five linear lobes, about 1.5 mm long, borne on elongated pedicels. Corolla is 2–3 mm long. Flowers have five included stamens and an ovary with a gynobasic, filiform style. Fruits are globose nutlets, 2–3 mm in diameter.