Syzygium guineense is commonly called waterberry or water pear in English and is known by many local African names across West, East, and Central Africa.
The water berry (Syzygium guineense, family Myrtaceae) is an evergreen plant that varies enormously in form, from a shrub only 30 cm tall to a forest tree more than 30 metres high with a dense, heavy, rounded crown. In large trees the trunk can be free of branches for 15 metres, up to 150 cm across, and supported by buttresses. It is said to occupy the widest range of habitats of any African plant, from sea shores and savanna to river banks and many kinds of forest, from sea level to 2,100 metres, usually in moist places and sometimes standing in water.
The species ranges from Senegal to Somalia and south to Namibia, Zimbabwe and South Africa, and also grows in Yemen and Saudi Arabia. It prefers full sun, 1,000 to 2,300 mm of rain a year and moist but well-drained soil with a high water table. Trees usually bear heavy crops of fruit, which are sold in local markets, and they respond well to coppicing and pollarding. Though the plant varies so much in size, its leaves and flowers vary little. The bark is poisonous and has been reported to cause human deaths. The seed stays viable for only a short time and is best sown as soon as it is ripe.
Source: Useful Tropical Plants database (Fern, K.).
Various parts of the tree are traditionally used to treat digestive disorders, infections such as malaria and worms, skin wounds, women’s health conditions, and pain, though the bark must be used carefully due to its potency.
The tree produces edible purple-black fruits that are eaten fresh or processed into drinks or vinegar and provide vitamin C and essential minerals.
In some African traditions, the plant is used for spiritual protection and healing rituals, while its bark, wood, and smoke serve dyeing, construction, canoe making, and household purposes.
It is mainly propagated by fresh seeds that must be sown immediately, as well as by transplanting wild seedlings or using cuttings and air-layering