Eucalyptus oleosa F.Muell. ex Miq.

Oil Mallee

Ned. Kruidk. Arch. 4: 127 (1856) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Mallee; bark rough on lower part of trunk, fibrous, usually loose. Juvenile leaves shortly petiolate, linear, spirally arranged, later leaves decussate, linear to narrowly lanceolate, to 8 cm long, 0.8 cm wide; adult leaves petiolate, alternate, narrowly lanceolate, 7–10 cm long, 0.8–1.5 cm wide, concolorous, glossy green; side veins weakly pinnate, fine; oil glands very numerous, round, island. Inflorescences axillary, unbranched; peduncles slightly flattened, to 1.3 cm long, 11- or 13-flowered; buds pedicellate, oblong or ovoid, to 0.8 cm long, 0.3 cm diam., scar present; operculum obtuse, often narrower than hypanthium, rarely acute; stamens irregularly flexed; anthers scarcely versatile, basifixed, globoid; ovules in 4 vertical rows; flowers white or creamy-white. Fruit pedicellate, truncate-globose, to 0.6 cm long, 0.6 cm diam.; disc vertically descending; valves 3 or 4, enclosed, surmounted by semi-persistent, fragile, style remnants; seed grey, flattened-ellipsoid, smooth with shallow, longitudinal furrows, hilum ventral. Flowers Jan.–Jul.

LoM, MuF, MuM, RobP, VRiv, VVP, Wim. Common in mallee north from the Little Desert.

Formerly confused with E. socialis F. Muell. ex Miq. through misinterpretation of the type. Eucalyptus oleosa is readily distinguished in the field by the glossy green leaves, and in the glasshouse by the dense, spiral linear seedling leaves.

Source: Brooker, M.I.H.; Slee, A.V. (1996). Eucalyptus. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
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Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Myrtales
family Myrtaceae
genus Eucalyptus
Higher taxa
Subordinate taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Eucalyptus oleosa in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Eucalyptus oleosa in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Robinvale Plains present native
Murray Fans present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory