Botanical name: Dillenia sp.
Common name: Dengen
Family: Dilleniaceae
Origin: Southeast Asia
Species:
Dillenia celebica
Dillenia ochreata
Dillenia reticulata
Dillenia retusa
Dillenia turbinata
Similar plants: Dillenia sp. (Dengen)
Link to this plant:
https://toptropicals.com/catalog/uid/dillenia_sp.htm