Electronic Flora of South Australia
Electronic Flora of South Australia
Census of SA Plants, Algae & Fungi
Identification tools

Electronic Flora of South Australia species Fact Sheet

Family: Myrtaceae
Eucalyptus oleosa

Citation: F. Muell. ex Miq., Nederl. Kruidk. Arch. 4:128 (1856).

Synonymy: E. oleosa F. Muell. ex Miq. var. angustifolia Maiden, Crit. Rev. Eucalyptus 39:278 (1919).

Common name: Red mallee, giant (or acorn) mallee.

Single- or more often multi-stemmed trees to 10 m high; bark smooth, grey or brown-grey except on lower parts where rough and flaky to fibrous; cotyledons deeply 2-fid; juvenile leaves opposite or alternate, sessile or shortly petiolate, linear to narrow-lanceolate; adult leaves alternate, on petioles 8-18 mm long, narrow-lanceolate to lanceolate, often falcate, often uncinate, glossy, bright-green, 6-14 x 1-2 cm, veins rather indistinct in dried material.

Flowers in umbels of 5-14 in the axils of the leaves; buds on pedicels 2-4 mm long, ovoid to cylindrical, smooth, 6-8 x 3-4 mm; operculum cylindrical to conical, obtuse, about as long as or longer than the hemispherical hypanthium; flowers white to pale-yellow; anthers all fertile, oblong-reniform.

Fruit subglobose or hemispherical, usually slightly contracted at the orifice, woody, with descending disk and thin rim, 5-8 x 5-7 mm; valves fragile, needle-like, protruding well beyond the orifice; seeds ellipsoid or lunate, shallowly reticulate, not winged, grey-brown.

Published illustration: Holliday & Hill (1974) A field guide to Australian trees, p. 121; Jessop (1981) Flora of central Australia, pl. 3.

Distribution:    W.Aust.; N.S.W.; Vic.

Conservation status: native

Flowering time: April. — Nov.

SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available

Disclaimer Copyright Disclaimer Copyright Email Contact:
State Herbarium of South Australia
Government of South Australia Government of South Australia Government of South Australia Department for Environment and Water