White Njaval, known as jambul, jambolan, jamblang or jamun, is an evergreen tropical tree in the flowering plant family Myrtaceae. Syzygium cumini is native to the Indian Subcontinent and adjoining regions of Southeast Asia. A slow growing species, it can reach heights of up to 30 m and can live more than 100 years. Its dense foliage provides shade and is grown just for its ornamental value. At the base of the tree, the bark is rough and dark grey, becoming lighter grey and smoother higher up. The wood is water resistant. Because of this it is used in railway sleepers and to install motors in wells. It is sometimes used to make cheap furniture and village dwellings though it is relatively hard to work on. White njaval trees start flowering from March to April. The flowers are fragrant and small, about 5 mm in diameter. The fruits develop by May or June and resemble large berries; the fruit of Syzygium species is described as “drupaceous”.The fruit is oblong, ovoid. Unripe fruit looks green. As it matures, its color changes to pink, then to shining crimson red and finally to black color. A variant of the tree produces white coloured fruit. The fruit has a combination of sweet, mildly sour and astringent flavour and tends to colour the tongue purple.

The Java plum, scientifically known as Syzygium cumini, is a tropical fruit tree native to the Indian subcontinent but cultivated in various parts of the world. It belongs to the Myrtaceae family and is also known by other common names such as Indian blackberry, Jambolan plum, or Jamun.

The Java plum tree is a medium-sized evergreen tree that can grow up to 30 meters (98 feet) in height. It has a dense canopy with dark green, glossy leaves that provide ample shade. The tree produces small, round fruits that are initially green but turn purplish-black when ripe. The fruit has a sweet and slightly acidic flavor, with a distinctive astringent taste that is reminiscent of a combination of plum and blackberry.

The fruit of the Java plum is highly valued for its taste and is used in various culinary applications. It can be eaten fresh, made into jams, jellies, and juices, or used as a flavoring in desserts and beverages. In some regions, the ripe fruit is also fermented to produce an alcoholic beverage.

Besides its culinary uses, Java plum has also been used in traditional medicine for its potential health benefits. Various parts of the tree, including the fruit, bark, leaves, and seeds, are believed to possess medicinal properties. They are used in traditional systems of medicine for managing conditions such as diabetes, digestive disorders, and skin ailments.

The Java plum tree is well-suited to tropical and subtropical climates and prefers well-drained soil and full sun exposure. It is relatively hardy and can tolerate a range of soil conditions. The tree also produces small, fragrant white flowers, adding to its ornamental value.

In summary, the Java plum is a tropical fruit tree known for its sweet and tangy fruits. It is cherished for its culinary uses and potential health benefits. Additionally, the tree's lush foliage and fragrant flowers make it a desirable addition to gardens and landscapes in suitable climates.