Authentic Thai Recipe Ingredient: Melientha suavis Melientha suavis Phak wan Used in soups, mainly the sour soup of the kaeng type. Browse Ingredients by Category: VegetablesHerbs and Spices (Fresh)Herbs and Spices (Dry)Roots and RhizomesMeat and PoultryFish and SeafoodMushrooms and FungiFlowers and Tree LeavesFruits and NutsStaple FoodsChili Pastes and CurriesSauces and CondimentsInsects