Millingtonia hortensis, commonly known as Millingtonia or Indian cork tree, is a striking evergreen tree valued for its ornamental qualities and fragrant flowers. It belongs to the Bignoniaceae family, a group of plants often recognized for their showy blooms. This species holds a place in traditional horticultural practices and holds cultural significance in its native regions. The growth habit of Millingtonia hortensis is that of a medium to large tree, typically reaching heights of 15 to 25 meters, though it can occasionally grow taller. Its form is often upright and somewhat columnar when young, developing a more spreading canopy with age. The bark is a distinguishing feature, being corky, thick, and deeply fissured, which contributes to its common name. The leaves are pinnately compound, meaning they are divided into several leaflets arranged along a central stalk. These leaflets are ovate to lanceolate, typically 3 to 7 centimeters long, and possess a glossy, dark green surface. The arrangement of the leaves is opposite or whorled. The most celebrated aspect of Millingtonia hortensis is its inflorescence. The flowers are borne in large, terminal panicles, which are clusters of many individual flowers. Each flower is trumpet-shaped, about 2.5 to 4 centimeters long, and a delicate white or creamy white color. They are intensely fragrant, particularly in the evening, releasing a sweet, jasmine-like scent that has earned it widespread admiration. Flowering usually occurs during the dry season, often from late winter through spring. Following flowering, the tree produces a fruit, which is a long, slender capsule, often 20 to 40 centimeters in length. These capsules contain numerous small, winged seeds, adapted for wind dispersal. Millingtonia hortensis is native to Southeast Asia, including countries like India, Myanmar, Thailand, and Malaysia. It thrives in tropical and subtropical climates and is well-adapted to a range of soil types, provided they are well-drained. While it prefers full sun for optimal growth and flowering, it can tolerate partial shade. In cultivation, it is relatively hardy and drought-tolerant once established, making it a popular choice for ornamental planting in parks, gardens, and along avenues in suitable climates. Beyond its aesthetic appeal, Millingtonia hortensis has some documented traditional uses. The bark has been historically employed in some regions for its cork-like properties, though this is not a primary economic use. In traditional medicine, various parts of the plant have been utilized for their purported therapeutic properties, though scientific validation for these uses is often limited. The fragrant flowers are sometimes used for perfumery or to adorn religious offerings. An interesting adaptation of this species is its ability to attract nocturnal pollinators, such as moths, due to the strong evening fragrance of its flowers. The corky bark may also serve as a protective adaptation against fire or desiccation in its native habitats.