The waterapple is native to the South-East Asia. The coloring of the fruit varies from pale green to ruby red. The waterapple is bell-shaped and is about 5 cm in diameter. The center of the fruit is hollow and is filled with woolly fibers and brown seeds. The waterapple has a slightly acid flavor and can be very sour. Vietnamese often use the waterapple as offerings at the altar because of their vibrant colors.