Ormosia coarctata is a leguminous tree endemic to Southeast Asia. It is commonly referred to as "kayu lentang" in Indonesia, "ton lang" in Thailand, and "bois lakana" in Madagascar. The tree is known for its ornamental value as well as its medicinal properties. In traditional medicine, its bark and leaves have been used for treating a range of ailments. This tree is also important for its eco-friendliness, being used in agroforestry and reforestation projects. Other synonyms for Ormosia coarctata include Ormosia lentang, Ormosia kainantensis, Ormosia tonkinensis, and Ormosia vernicia.