duhat

Duhat - (Black Plum/Java Plum) - Syzygium Cumini Skeels Parts used: fruit, leaves, bark, seeds
Duhat is a fruit tree found mostly wild throughout the Philippines. Duhat seeds are known for the treatment of diabetes, as are the leaves and the juice from the fruit. The bark is astringent and in decoction is used as a mouthwash and as a gargle for ulcerations of the mouth.

Source:http://www.philippineherbs.com/philippineherbindex.htm