Blackbutt has dark fibrous grey-brown spongy bark covering the lower part of the trunk, which comes away in strips. The bark higher up and on the branches is a glossy cream, occasionally with scribbles from insect larvae. The branchlets are square in cross section. Juvenile specimens are conspicuous, with pairs of opposite, broad-lanceolate leaves, much paler below the leaf than above. Blackbutt is a Eucalyptus species without a lignotuber. The adult leaves are arranged alternately on the stem, lanceolate to slightly sickle shaped. Asymmetrical at the base, they are oblique in shape. The leaves are same shade of glossy to dark green above and below the leaf. The leaf stems are four sided or squarish with a flanged edge in cross section.