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Eucalyptus tereticornis (MYRTACEAE) Queensland Blue Gum, Forest Red Gum

Habit

Eucalyptus tereticornis
Photo: Robert Whyte

Evergreen tree 1846 m high with straight stout trunk 11.8 m in diameter, large and open or fairly dense crown. Bark smooth, whitish, peeling in irregular thin sheets or large flakes, becoming mottled with white, gray, or blueish patches. Native from eastern Australia into New Guinea and Papua.

Usually with a short stocking of dark, peristent bark at the base.

Koala food tree. Important pollen source for bees. Flowers and fruit attract birds.

The coreid, Amblypelta cocophaga, has been associated with trees suffering dieback.

Hollow branches provide nest sites for wild life.

At dusk, Lorikeets mass in hundreds in the largest trees. The noise and droppings drove the Gap Village to trim the ones out the back of the Coffee Club. The lorikeets moved across the road and into Walton Bridge Reserve.

Bark

Eucalyptus tereticornis
Photo: Robert Whyte

This photo shows the upper section of the persistent collar of bark.

Heavy wood is hard, durable, and strong but difficult to work. It is used for fuel, pulp, pilings, fiberboard, and construction, crossties and fenceposts.

Leaves contain 0.480.66% essential oil, 010.4% of which is cineol. The bark and kino contain tannin.

Flowers and foliage


Eucalyptus tereticornis
Photo: Robert Whyte

Flowers are in umbels single at leaf base, 2.53 cm long including the rounded stalk of 1 cm. Flowers 512, spreading on equal stalks on 57 mm. Buds 1216 mm long, 5 mm wide. Stamens many, threadlike, white, 1012 mm long.

Flowers closeup


Eucalyptus tereticornis
Photo: Robert Whyte

Tolerates drought and light frosts but not acidic soils or waterlogging.