Acacia auriculiformis, commonly known as the “Ear-pod Wattle” due to the distinctive shape of its leaves, is a tropical species native to Australia, Indonesia, and Papua New Guinea. Belonging to the Fabaceae family, this tree is renowned for its rapid growth and remarkable ability to adapt to various tropical climates. It can grow to a height of 15 to 30 metres, with a straight trunk clad in rough, brown, fissured bark. What appear to be its leaves are actually phyllodes—long, sickle-shaped structures that give the tree a graceful and elegant appearance.
At the botanical garden Au Bois Vert, the Acacia auriculiformis, or “Ear-pod Wattle“, holds a special place thanks to its striking blossoms and ecological value. It produces small, golden-yellow flowers arranged in cylindrical spikes, which are highly attractive to pollinating insects. These blooms release a delicate fragrance that enhances the peaceful ambiance of the garden, located in Ivato, near Antananarivo.
This species also features a robust root system that enriches the soil with nitrogen, making it particularly suitable for reforestation projects in degraded areas. Whether you’re staying at the Au Bois Vert lodge or hotel, a stroll through the botanical garden offers a wonderful opportunity to discover this fascinating tree while enjoying a tranquil and serene setting.
Plant use
Acacia auriculiformis boasts a wide range of uses that extend far beyond its ornamental appeal. In agroforestry, this tree is highly valued for its role in stabilising soil and enhancing its fertility. Its nitrogen-fixing roots help to rejuvenate depleted land, particularly in tropical regions. The wood of this species is prized for its strength and durability. It is commonly used in the production of furniture, particle boards, and, due to its high density, it also serves as an efficient source of firewood. The leaves and bark are used to extract tannins, which play a key role in leather tanning processes. At the Au Bois Vert botanical garden, this tree offers more than just visual charm. It provides welcome shade for visitors wishing to enjoy the open-air restaurant while immersing themselves in the surrounding biodiversity. Its dense, evergreen foliage also makes it an excellent choice for windbreak hedging. For plant enthusiasts staying in Ivato, near Antananarivo, Acacia auriculiformis is a true asset. Come and admire it up close while exploring the many other wonders of the botanical garden.
Key information
| Common name | Ear-pod Wattle |
| Scientific name | Acacia auriculiformis |
| Origin | Native to Australia, Papua New Guinea and Indonesia |
| Natural habitat | Tropical and subtropical zones, often in open forests or coastal areas |
| Life cycle | Perennial |
| Flowering period | Flowers generally between May and August, but may vary according to local conditions |
