Dipterocarpus oblongifolius, commonly known as the Neram Tree, is a significant species within the Dipterocarpaceae family, a group of trees renowned for their valuable timber and ecological importance in Southeast Asian forests. This species is characterized by its majestic stature and specific morphological traits that distinguish it within its genus. The Neram Tree typically grows into a large, emergent tree, often reaching heights of 40 to 60 meters, with a straight, cylindrical trunk that can be up to 2 meters in diameter. Its bark is generally smooth and greyish when young, becoming fissured and darker with age, often exuding a resinous sap characteristic of Dipterocarps. The leaves are simple, alternate, and oblong to ovate in shape, measuring approximately 10-20 cm in length and 5-10 cm in width. They possess a leathery texture and prominent venation, with a pointed or acuminate apex and a rounded or slightly cordate base. The inflorescences are axillary or terminal panicles bearing numerous flowers. The flowers are typically fragrant and possess five petals, often white or pale pink, and prominent stamens. The fruit is a nut-like structure, known as an indehiscent samara, which is enclosed at its base by two enlarged, wing-like calyx lobes, facilitating wind dispersal. These wings are a defining feature of the Dipterocarpaceae family, aiding in seed dispersal over considerable distances. Dipterocarpus oblongifolius is native to the tropical rainforests of Southeast Asia, with its distribution primarily encompassing parts of Peninsular Malaysia, Borneo, and Sumatra. It thrives in lowland dipterocarp forests, often found on well-drained soils, including sandy loams and clay soils, typically at elevations below 1000 meters. While its natural habitat is the primary forest, it is not widely cultivated outside its native range, and specific horticultural requirements for cultivation are not extensively documented for ornamental purposes. Economically, Dipterocarpus species, including D. oblongifolius, have historically been important sources of timber. The wood is generally hard, durable, and suitable for construction and furniture making. The resinous sap, known as *keruing* oil, has also been utilized in traditional medicine and as a component in varnishes and waterproofing agents. Ecologically, the Neram Tree plays a crucial role in its forest ecosystem, providing habitat and food sources for various fauna. Its large canopy contributes to the structural complexity of the rainforest, and its role in nutrient cycling is significant. An interesting characteristic of Dipterocarpus oblongifolius, shared with many other dipterocarps, is its gregarious flowering habit, where large numbers of trees in a region flower simultaneously, often in response to specific environmental triggers such as prolonged dry periods. This synchronized flowering is thought to enhance pollination success and seed production, while also potentially satiating seed predators. The distinctive winged fruits are a remarkable adaptation for dispersal, allowing the species to colonize new areas within the forest.