Zieria eungellaensis is a compact but open shrub which grows to a height of and has rough, wiry branches which are sometimes hairy. The leaves have a
petiole long and a central leaflet which is elliptic to egg-shaped, long, wide with the other two leaflets slightly smaller. Only the midvein is distinct on the lower surface and unlike some other zierias, the leaf surface is not obviously warty. The flowers are white and are arranged singly or in groups of two or three in leaf
axils on a slightly warty stalk long, the groups shorter than the leaves. The
sepals are mostly
glabrous, less than long and wide and the four petals are elliptic in shape, long, wide, varying between populations. The four stamens are about long. Flowering occurs between May and August and is followed by fruit which is a glabrous
capsule, about long and wide. ==Taxonomy and naming==