Eucalyptus oleosa F.Muell. ex Miq.

Usually a mallee, sometimes a tree, to 12 m. Bark rough, fibrous or flaky on lower trunk, smooth, grey or grey-brown above. Juvenile leaves spirally arranged or in 3s, sessile, narrowly elliptic, green, decurrent. Adult leaves narrowly lanceolate, uncinate; lamina 7–10 cm long, 0.8–1.5 cm wide, shining, green, glandular; lateral veins faint, at 40°–50°; intramarginal vein up to 1 mm from margin; petiole terete, 8–18 mm long. Umbels usually 7–11-flowered, sometimes more; peduncle slightly flattened, 7–12 mm long; pedicels 1–5 mm long. Buds ovoid or cylindrical; operculum conical-cylindrical, obtuse, 3–4 mm long and wide; hypanthium cylindrical or hemispherical, 2–3 mm long, 3–4 mm wide. Fruits subglobular, 4–6 mm long and wide; valves 3.

It grows in warm temperate regions. It suits arid and semiarid locations. It needs well drained soil and can grow in full sun or light shade. It can stand light frosts. It grows in areas with a rainfall between 200-450 mm. It can grow in arid places. It suits hardiness zones 9-11.

Water drained from the roots is good for drinking.

Can be grown by seedlings.