Acronychia octandra is a rainforest

Rainforest

Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...

 tree in the citrus family

Rutaceae

Rutaceae, commonly known as the rue or citrus family, is a family of flowering plants, usually placed in the order Sapindales.Species of the family generally have flowers that divide into four or five parts, usually with strong scents...

, found in eastern Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. It is one of several Australian trees known as Doughwood. An attractive tree with a spreading crown of relatively large glossy leaves. The specific epithet octandra refers to the eight stamens in the flower.

Habitat

The habitat is rainforest on fertile volcanic soils. Growing as far south as the Bellinger River

Bellinger River

The Bellinger River is a river on the mid north coast of New South Wales. Clement Hodgkinson was the first person to explore the area in March 1841....

 to Nambour in south eastern Queensland. A common species on the McPherson Range

McPherson Range

The McPherson Range is an extensive mountain range, a spur of the Great Dividing Range, heading in an easterly direction from near Wallangarra to the Pacific Ocean coastline. It forms part of the Scenic Rim on the border between the states of New South Wales and Queensland. Further west of the...

, on the border between the states of New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

 and Queensland

Queensland

Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

.

Description

A tree to 30 metres in height, with a stem diameter of 75 cm. The trunk is buttressed in larger trees. Bark is a pale greyish brown colour, with cracks and fissures. Also there are flaky corky scales. Small branches are green, hairless with noticeable leaf scars.

Leaflets are in threes. Leaflets have no leaf stem. They are 8 to 20 cm long, oblong-elliptical in shape. Oil dots are easily noticed with a hand lens. A dark green above, paler below. Somewhat leathery to the touch. The leaf stalk below the three leaflets is 1 to 8 cm long with a turpentine like smell, and with raised dots on the stalk. Leaf veins easily seen above and below the leaf. The midrib is raised on the underside.

Flowers & fruit

Greenish to white flowers appear on panicle

Panicle

A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....

s from the leaf axils, in the months of August to January. The fruit is less than 4 mm long with shiny brown seeds, maturing from March to June.

Germination

Germination from fresh seeds can occur rapidly, as early as 11 days. However, some seeds may germinate five months after sowing.