Annual up to 40 cm tall, branched. Leaves petiolate, greyish-white with dense hairs; petiole 5-10 mm long. Lamina 10-25 x 4-13 mm, elliptic to obovate, mucronate, appressed hairy on both surfaces. Inflorescence terminal, slender, 2-13 cm long, sometimes forked, ebracteate, bearing biseriate flowers. Calyx c. 2 mm long, 5-partite into unequal lobes, setose, persistent. Corolla white, c. 3 mm long, tube cylindrical, hairy to the outside, sparsely so in the throat; lobes ovate, apiculate. Anthers 0.5-0.6 mm long, narrow, attached c. 0.5 mm from corolla base, connective produced. Stigma c. 0.4 mm long, conical, apex minutely setose. Style inconspicuous. Ovary glabrous. Fruit ovoid; nutlets 4, c. 1.5 mm long, appressed hairy.