Epacris corymbiflora is a spreading shrub that grows up to high and wide. The leaves are crowded, elliptic or diamond-shaped, long with a small point on the tip and the edges curved upwards. Both sides of the leaves are green and there are a few more or less parallel veins. Flowering occurs in summer and the flowers are arranged in dense, more or less sphericalgroups near the ends of branches, each flower tube-shaped, white and about in diameter.