It is a variably prostrate to erect plant, with stems growing along the ground up to 45 cm long, but only reaching up to 30 cm tall. The leaves are oval, up to 3 cm long, and arranged in opposite pairs. The flowers are very small, with four white petals. It grows in sunny locations and a variety of soils, and functions as a pioneer species in ecological succession. The sap of this plant is a mild skin irritant and can cause a rash in some people. The sap is poisonous and considered carcinogenic.