Eucalyptus pimpiniana is a shrubby mallee that typically grows to a height of and forms a
lignotuber. It has smooth, mottled
salmon-coloured, grey and brownish bark. Young plants and
coppice regrowth have greenish grey, lance-shaped to egg-shaped leaves that are long and wide and
petiolate. Adult leaves are the same shade of dull bluish green on both sides, lance-shaped, long and wide, tapering to a petiole long. The flower buds are arranged in leaf
axils in groups of between seven and nineteen on an unbranched
peduncle long, the individual buds on
pedicels long. Mature buds are oval to pear-shaped, long and wide with a beaked
operculum. Flowering is spasmodic but has been observed in January, July and October and the flowers are yellow. The fruit is a woody, cylindrical to barrel-shaped
capsule long and wide with the valves below rim level. ==Taxonomy and naming==