Botanical name: Mitrephora alba
Common name: Mitrephora
Family: Annonaceae
Origin: Thailand
The genus Mitrephora, of family Annonaceae, comprises around 40 species of small trees and shrubs found in tropical Asia and northern Australasia.
Similar plants: Mitrephora alba (Mitrephora)
Link to this plant:
https://toptropicals.com/catalog/uid/mitrephora_alba.htm