Baeckea latifolia is an erect shrub that typically grows to a height of and has arching branches. The leaves are elliptic to egg-shaped with the narrower end towards the base, long and wide on a petiole long. The flowers are about in diameter and are borne singly in leaf axils, each flower on a pedicel about long. The sepals are oblong, long and the petals are white, more or less round and long. There are six to eight stamens in groups of up to three, the ovary has two locules and the style is about long. Flowering occurs in January and February and the fruit is a cylindrical capsule long.