Bael (Aegle marmelos) (also known as Bengal quince, stone apple or wood apple), Bilva or வில்வம் (Tamil) is a species of tree native to India. It is present throughout Southeast Asia as a naturalized species. The tree is considered to be sacred by Hindus. Its fruits are used in traditional medicine and as a food throughout its range.
Bael is the only member of the monotypic genus Aegle. It is a mid-sized, slender, aromatic, armed, gum-bearing tree growing up to 18 meters tall. It has a leaf with three leaflets.