Coscinium fenestratum or yellow vine, as it is sometimes referred to in English, is a flowering woody climber, native to South Asia and Mainland Southeast Asia. It is rare and critically endangered in many of its habitats. Coscinium fenestratum is a member of the family Menispermaceae and the genus Coscinium. The plant is known by many different names, such as: Tree turmeric, False calumba, Colombo weed, Weniwel, Daru Haridra (in Sanskrit), Mara Manjal (in Tamil and Malayalam), Haem herb (in Thai), Voer Romiet (in Khmer), etc..