Shorea laeviforia
 Shorea laeviforia is a plant species in the genus Shorea.Valoneic acid dilactone flavogallonic acid dilactone gallagyldilactone ellagic acid and gallic acid are hydrolysable tannins that can be isolated from the heartwood of S. laeviforia as well as two stilbenoids laevifonol (an ε-viniferin-ascorbic acid hybrid compound) and laevifoside (an O-glucoside of ampelopsin A).