Calophyllum inophyllum, commonly known as tamanu or beach calophyllum, is an evergreen tree that is native to coastal and lowland forests in tropical Asia and Wallacea. It is also found in East Africa, Australia, and the Pacific Islands, where it has been widely naturalized. This species typically grows to a height of 26-98 feet (8-30 meters) with a broad, spreading crown that can provide significant shade. The tree is notable for its dense foliage, glossy green leaves, and fragrant white flowers that bloom throughout the year in its native range. The flowers are followed by round, green fruits that turn brown as they mature, each containing a single large seed. The bark is dark and furrowed, adding to the tree’s ornamental value.

Tamanu is valued for its ability to grow in a variety of soil conditions, including sandy, clay, and degraded soils, making it an excellent choice for erosion control along coastlines. It is also used for timber and has a long history in traditional medicine, where oil from its seeds is used for skin ailments. In cultivation, it requires full sun to partial shade, moderate watering, and well-draining soil. While it is tolerant of salt spray and wind, it is not frost-tolerant and should be planted in warm climates. Due to its potential invasiveness, it is important to consult local regulations before planting tamanu outside its native range.CC BY-SA 4.0