Calophyllum inophyllum is a low-branching and slow-growing tree, it spreads with a broad and irregular crown. It usually reaches 8 to 30 m (26 to 98 ft) in height. Its trunk is thick and covered with black and cracked bark. Flowering can occur perennially, but usually two distinct flowering periods are observed twice a year, in late spring from April to June and in late autumn from October to December.The flower is 25 to 30 mm (0.98 to 1.18 in) wide and occurs in racemose or paniculate inflorescenes consisting of four to 15 flowers. It has a sweet fragrance which attracts many insects to pollinate.The fruit (the ballnut) is a round, green drupe measuring 2 to 4 cm (0.79 to 1.57 in) in diameter. When ripe, the fruit is wrinkled and its color varies from yellow to brownish-red. It has thin spongy flesh with a taste slightly like apple.

Malayalam- punna

English - tamanu

              -oil-nut

               -mastwood

                -beach calophyllum 

                -beautyleaf

In pharmaceuticals, it is known to function as an antibacterial, anticancer, antineoplastic, anti-inflammatory, antiplatelet, antipsychotics, antiviral, photoprotective, molluscicidal, and piscicidal agent.