Parastemon grandifructus  Parastemon grandifructus is a tree in the family Chrysobalanaceae. The specific epithet "" is from the Latin meaning "large fruit". "Parastemon grandifructus" grows up to tall with a trunk diameter of up to . The ellipsoid fruits measure up to long. "Parastemon grandifructus" is endemic to Malaysian Borneo. Its habitat is lowland forests, including swamps, from sea-level to altitude.