Eucalyptus bakeri is a
mallee that typically grows to a height of or a tree to . It forms a
lignotuber and has grey to brown, compact fibrous to flaky bark on the trunk and smooth white or grey bark above that sheds in ribbons through the year. Leaves on young plants and on
coppice regrowth are arranged in opposite pairs, linear to narrow lance-shaped, long, wide and lack a
petiole. The adult leaves are arranged alternately, linear to narrow lance-shaped, long, wide with a petiole long, and the same green or yellow-green, glossy appearance on both sides. The flowers are borne in groups of between seven and thirteen in leaf
axils on a
peduncle long, the individual flowers on a
pedicel long. Mature buds are oblong to spindle-shaped, long and wide with a conical to horn-shaped
operculum. Flowering mainly occurs from June to August and the flowers are white. The fruit that follows is a woody, hemispherical to a shortened sphere long and in diameter. ==Taxonomy and naming==