Acacia decurrens is a perennial tree or shrub native to eastern 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...

. Including Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

, the Greater Blue Mountains Area

Greater Blue Mountains Area

The Greater Blue Mountains Area is a World Heritage Site in the Blue Mountains of New South Wales, Australia. It was inscribed on the World Heritage List at the 24th Session of the World Heritage Committee, held in Cairns from 27 November to 2 December 2000...

, the Hunter Valley

Hunter Valley

The Hunter Region, more commonly known as the Hunter Valley, is a region of New South Wales, Australia, extending from approximately to north of Sydney with an approximate population of 645,395 people. Most of the population of the Hunter Region lives within of the coast, with 55% of the entire...

 and south west to the Australian Capital Territory

Australian Capital Territory

The Australian Capital Territory, often abbreviated ACT, is the capital territory of the Commonwealth of Australia and is the smallest self-governing internal territory...

.

It is cultivated throughout Australia and the world, and has naturalised in most Australian states and also in Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, the Americas

Americas

The Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...

, Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

, New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

 & the Pacific, the Indian Ocean

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

 area, and Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. It grows to a height of 2-10m and it flowers from July to September.

Uses

Uses for it include chemical products, environmental management and wood.
The flowers are edible and are used in fritter

Fritter

A fritter is any kind of food coated in batter and deep fried. Although very similar to a doughnut it differs in the fact that it requires some base ingredient beyond the dough it is cooked with.-Anglo-American fritters:...

s. An edible gum oozes out of the tree's trunk and it can be used as a lesser-quality substitute for Gum Arabic

Gum arabic

220px|thumb|right|Acacia gumGum arabic, also known as acacia gum, chaar gund, char goond, or meska, is a natural gum made of hardened sap taken from two species of the acacia tree; Acacia senegal and Acacia seyal...

, for example in the production of fruit jelly. The tree's bark has astringent properties, but it has to be stored for a year before it can be made use of. The bark contains about 37-40% tannin

Tannin

A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids.The term tannin refers to the use of...

. The flowers are used to produce yellow dye

Dye

A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber....

 and the seed pods are used to produce green dye. An organic chemical compound called kaempferol

Kaempferol

Kaempferol is a natural flavonol, a type of flavonoid, that has been isolated from tea, broccoli, Delphinium, Witch-hazel, grapefruit,cabbage, kale, beans, endive, leek, tomato, strawberries, grapes, brussels sprouts, apples and other plant sources. Kaempferol is a yellow crystalline solid with a...

is what gives the flowers of Acacia decurrens their color.

Cultivation

Cultivation of Acacia decurrens can be started by soaking its seeds in warm water and sowing them outdoors. The seeds keep their ability to germinate for many years.

External links

• USDA Plants Profile: Acacia decurrens