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 is frequently found as a weed in gardens. The sap of this plant is a skin irritant and will cause a rash similar to Poison Ivy. Use gloves when pulling this weed.