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Acacia auriculiformis (Earleaf acacia)
Auri, Earleaf acacia, Earpod wattle, Northern black wattle, Papuan wattle, Tan wattle, Akashmoni
Note: The image is for reference purpose only. The actual product may vary in shape or appearance based on climate, age, height etc.
In its native habitat, the tree is a colonizer of tropical coastal lowlands. It has the potential to be a pioneer species, but its tendency to spread into the local environment reduces its value as a pioneer outside of its native range. The plant has a spreading, superficial and densely matted root system, which makes it suitable for stabilizing eroded land.
- Features:- It is a fast-growing, crooked, gnarly tree in the family Fabaceae. It is native to Australia, Indonesia, and Papua New Guinea. Acacia auriculiformis is an evergreen tree that grows between to 15–30 m tall, with a trunk up to 12 m long and 50 cm in diameter. The trunk is crooked and the bark vertically fissured. Roots are shallow and spreading. It has dense foliage with an open, spreading crown. Leaves 10–16 cm long and 1.5-2.5 cm wide with 3-8 parallel nerves, thick, leathery and curved.
- Fruits & Flowers:- Flowers are 8 cm long and in pairs, creamy yellow and sweet scented. Pods are about 6.5 x 1.5 cm, flat, cartilaginous, glaucous, transversely veined with undulate margins. They are initially straight but on maturity become twisted with irregular spirals. Seeds are transversely held in the pod, broadly ovate to elliptical, about 4-6 x 3–4 mm.
- Special Characteristics:- This plant is raised as an ornamental plant, as a shade tree and it is also raised on plantations for fuelwood throughout southeast Asia, Oceania and in Sudan. Its wood is good for making paper, furniture and tools. It contains tannin useful in animal hide tanning. In India, its wood and charcoal are widely used for fuel. Gum from the tree is sold commercially, but it is said not to be as useful as gum arabic.
- Moisture & Soil:- It requires a sunny position, it is very intolerant of shade. Found most commonly on clay soils, it exhibits the ability to grow in a wide variety of soils including calcareous sands and black cracking clays, poor-fertility soils, seasonally waterlogged soils, sandy loams and coral rag. It can also tolerate highly alkaline and saline soils, pH ranging between 4.3 and 9. It has brittle, easily-broken branches and therefore requires a position sheltered from strong winds. Established plants can tolerate periodic inundation and are also very drought tolerant.