Eucalyptus jensenii is a tree that typically grows to a height of and forms a
lignotuber. It has hard, rough, coarse black "ironbark" on the trunk and larger branches. Young plants and
coppice regrowth have dull greyish green, egg-shaped to elliptic leaves long and wide. Adult leaves are the same shade of dull green or greyish green on both sides, egg-shaped to lance-shaped, long and wide on a
petiole long. The flower buds are arranged mostly on the ends of branchlets on a branching
peduncle long. Each branch of the peduncle has seven buds, each bud on a
pedicel long. Mature buds are pear-shaped to oval, long and wide with a conical
operculum. Flowering occurs from January to May and the flowers are creamy white. The fruit is a woody, barrel-shaped to conical
capsule long and wide with the valves near rim level. ==Taxonomy and naming==