Botanical name: Lumnitzera littorea
Common name: Teruntum merah
Family: Combretaceae
Origin: Southeast Asia
Lumnitzera littorea is found in the back mangroves, in soft, muddy substrates where tidal inundation is rare. Has ornamental potential due to its red flowers.
Link to this plant:
https://toptropicals.com/catalog/uid/lumnitzera_littorea.htm