Xylopia ferruginea is a species of flowering plant in the family Annonaceae. It is a tree native to Peninsular Thailand, Peninsular Malaysia, Sumatra, and Borneo. It is a medium-sized forest tree which can reach in height.
The word ferruginea is derived from the Latin word "ferrugo" ("rust"), and refers to the rusty colored hairs on the underside of the leaves.
In the Malay language, the common name is "Jangkang", which literally means "stilt roots".
References
The Wayside Trees of Malaya, EJH Corner, 4th Edition, 1998