Elattostachys nervosa, known as the Green Tamarind or Beetroot Tree is a common rainforest tree of 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...

. Found in all types of rainforest, growing from Paterson, New South Wales

Paterson, New South Wales

Paterson is a small township in the lower Hunter Valley of New South Wales, Australia. Located within Dungog Shire it is situated on the Paterson River. At the 2006 census, Paterson had a population of 345 people...

 (32° S) in the south to Gympie

Gympie

Gympie may refer to:* Gympie, a city in Queensland, Australia** Gympie Airport** Electoral district of Gympie** Gympie Region, its local government authority* Gympie Gympie , a stinging plant...

 (27° S) in south east 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 name Elattostachys refers to "little spikes", a flower feature of other plants in this genus. Nervosa refers to the prominent leaf venation. Beetroot Tree refers to the beetroot red leaves of the new growth.

Description

A medium sized tree, up to 30 metres tall and a stem diameter of 50 cm. Usually seen much smaller. The trunk is flanged or buttressed in larger trees. Relatively smooth bark, paper thin, grey. Though with vertical lines and stripes in certain broader tree trunks. Small branches thick, greyish brown with rusty hairs towards the end. Shoots with dense woolly hairs.

Leaves

Leaves pinnate

Pinnate

Pinnate is a term used to describe feather-like or multi-divided features arising from both sides of a common axis in plant or animal structures, and comes from the Latin word pinna meaning "feather", "wing", or "fin". A similar term is pectinate, which refers to a comb-like arrangement of parts...

 and alternate on the stem. Leaflet stalks 5 to 12 mm long. Leaflets 7 to 15 cm long, 2 to 4 cm wide. Though new growth can see leaflets red in colour and 28 cm long. Leaflets sometimes notched, other times entire. Leaflets sickle-shaped or lanceolate, with a fine or blunt tip. Leaf veins are evident on both sides of the leaf, net veins better seen under the leaf. Lateral veins 15 to 25 in number, raised on both sides.

Flowers

Flowers with very small yellow/brown petals form on raceme

Raceme

A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...

s in the months of March to May. Occasionally flowering between September to November.

Fruit and regeneration

The fruit is a reddish pink woody capsule with three cells. Warty and uneven in appearance, 12 to 18 mm in diamter. Inside the cell is a pink interior, with a black or dark brown glossy seed. Around the seed is red aril

Aril

An aril is any specialized outgrowth from the funiculus that covers or is attached to the seed. It is sometimes applied to any appendage or thickening of the seed coat in flowering plants, such as the edible parts of the mangosteen and pomegranate fruit, the mace of the nutmeg seed, or the...

, making the fruit attractive to birds. Fruit are often seedless, showing an unusual parthenocarpic

Parthenocarpy

In botany and horticulture, parthenocarpy is the natural or artificially induced production of fruit without fertilization of ovules. The fruit is therefore seedless. Stenospermocarpy may also produce apparently seedless fruit, but the seeds are actually aborted while still small...

formation. Regeneration from fresh seed is swift, with around half of the seeds germinating in the first two weeks.