Gowok fruit, or often called kupa fruit or kepa fruit is believed to be native to Southeast Asia, including Indonesia.
The gowok fruit has spread naturally from Java to Kalimantan.
This fruit is also often called gowak, kupa, dompyong in Java, and kaliasem in Bali.
Plants from the fruit of the gowok or Syzygium polycephalum have a single leaf that is oval in shape.
The length of the gowok fruit leaves is around 17-25 cm, and the width is around 6-7 cm. The inflorescence is panicle-shaped with white petals and many stamens.
Although it can be planted in gardens and agricultural areas, gowok or kupa fruit actually grows wild in secondary forest areas with an altitude of 200 to 1,800 meters above sea level (masl).
In their habitat, gowok or kupa trees can grow as high as 9 to 20 meters, with a characteristic lower trunk diameter of up to 50 cm. The leaves of the plant are single and oval in shape.
The leaves of the gowok can reach 17 to 25 cm in length, with a width of between 6 to 7 cm.
The flower of the gowok plant is elongated, with a white flower crown and many stamens.
If you pay attention, the male fruit is classified as a buni, which has a round shape with a slightly flattened surface. The size of the fruit is small to medium, with a diameter ranging from 2 to 3 cm.
Guy fruit grow in clusters with petals that remain attached at the ends. The color of the fruit is generally white, but turns purplish red when it is ripe.
Kupa fruit flesh contains fruit juice with a sour taste. Some fruits even taste sweet and sour and a bit astringent, with flattened seed shapes and reddish white skin.