Eucalyptus amplifolia is a tree that can grow to in height in forest situations, though it is often shorter in sparser woodland areas. It has smooth, often blotchy, white, cream, yellow, grey, pink or blue-grey bark throughout the trunk and branches, usually with loose, flaking grey slabs persistent at the base and lower trunk. The leaves on young plants are rounded, egg-shaped or triangular, green, long, and predominately held horizontal to the ground. Adult leaves are arranged alternately, broadly lance-shaped, long and wide on a
petiole long. Side-veins are 45° or greater to the midrib, and the leaves are of a dull or glossy green of the same hue both sides of the leaf. The flowers are arranged in groups of seven to fifteen or more, the groups on a flattened or angular
peduncle long, the individual flowers sometimes on a
pedicel up to long, or
sessile. The buds are cone-shaped, the
floral cup hemispherical long, the
operculum conical, long and about wide at the join. Flowering occurs between November and January and the fruit is a woody, hemispherical capsule long and wide on a pedicel long. There are three or four upward-pointing
valves on the top of the fruit. ==Taxonomy and naming==