The sitaphal (custard apple) is a tropical, deciduous perennial fruit plant that grows into a tree or shrub, typically reaching 3-8 meters in height. It is characterized by its simple, alternate, dark green, oblong leaves, and distinctive yellow-green flowers that appear in clusters. The plant produces a sweet, creamy, white flesh fruit known as the custard apple, which is round or heart-shaped and has a knobby, greenish-yellow skin