Botanical name: Dolichandrone spathacea
Common name: Mangrove Trumpet Tree
Family: Bignoniaceae
Origin: India
Flowers trumpet-shaped large white delicate with ruffled edges, in clusters of 2-10 flowers.
The flower is edible and it is part of Thai cuisine.
Link to this plant:
https://toptropicals.com/catalog/uid/dolichandrone_spathacea.htm