Eucalyptus crenulata is a tree that typically grows to a height of and forms a
lignotuber. It has hard, rough, compacted, grey to brown or black bark on the trunk and smooth grey or yellowish bark on the branches. The leaves on young plants and
coppice regrowth are egg-shaped to heart-shaped, arranged in opposite pairs, paler on the lower surface, long, wide and lack a
petiole. The adult leaves are similar to the juvenile leaves except that the juvenile leaves are covered with a powdery white bloom that eventually wears off. The edges of the leaves have small, rounded teeth. The flower buds are arranged in groups of seven, nine or eleven in leaf
axils on an unbranched
peduncle long, the individual buds on a
pedicel long. The mature buds are oval to almost spherical, covered with a powdery bloom, long and wide with a beaked
operculum. Flowering occurs from September to February and the flowers are white. The fruit is a woody cup-shaped
capsule long and wide on a pedicel up to long with the valves enclosed below the rim. ==Taxonomy and naming==