Ochanostachys amentacea, is also known as Petaling or Tamggal. It is native to Singapore and from the family Olacaceae.
This medium size and occasionally to large evergreen tree can grow to a height of 30m.
The flowers are interruptedly arranged, measuring about 3 mm long, green to whitish-yellowish. They are either on their own or 2-4 together in an inflorescence known as a spike, which measures up to 12 cm long. There are 4 petals fused at the very base, and 2 stamens before each petal.
This 1-seeded fruit measures 2-2.5cm in diameter and when it is ripe it turns yellow. The seed is ovaland are edible when cooked or roasted.
A decoction of the bark has been used medicinally against fever and after childbirth. Petaling Jaya timber is used from house posts to heavy construction purposes. The high elasticity of the wood makes it suitable for gymnasium equipment, such as horizontal bars.