Acronychia suberosa is a rainforest

Rainforest

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

 plant in the citrus

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...

 family, growing 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...

. The common name is the Corky Acronychia. The specific epithet suberosa means corky, referring to the bark on older trees.

Growing from the Richmond River, New South Wales to just over the border at 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...

 in south eastern 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...

. The habitat is sub-tropical or warm temperate rainforest on basalt

Basalt

Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...

 soils in high rainfall areas.

Description

It grows as a small to medium sized tree up to 20 metres in height and a stem diameter of 30 cm, with a thick dark crown of leaves.

The trunk is mostly cylindrical, but occasionally with flanges at the base. Bark is brown or red-brown, usually smooth. Though larger trees have some corky patches. Small branchlets are wrinkled length-ways, they have with brown furry hairs on the ends. Pale dots may also be seen.

Leaves

Leaves form in threes, or sometimes in twos. Opposite or alternate on the stem. 4 to 8 cm long 1 to 3 cm wide. Leaves are hairless with a short point, or a rounded end. Leaflets without a stalk, but the compound leaf has a stalk between 1 to 3 cm long. There are cracks and narrow raised corky growths around the stalks of the older leaves. Leaf veins are visible both sides, the midrib is raised below the leaf, but sunken on the top side.

Flowers, fruit & regeneration

White flowers form from January to April in axillary cymes. Usually in threes. The cymes are usually shorter than the leaflets.

Fruit matures from March to June. A cream or white drupe

Drupe

In botany, a drupe is a fruit in which an outer fleshy part surrounds a shell of hardened endocarp with a seed inside. These fruits develop from a single carpel, and mostly from flowers with superior ovaries...

, 1.3 mm in diameter, angled and ribbed. Fruit is edible but acidic. Inside the fruit are black or red/brown seeds, 4 mm long. Removal of the flesh from the seed is advised for regeneration. Around 30% of the seeds may germinate in five months.