Alstonia actinophylla (Milkwood)
Botanical name: Alstonia actinophylla
Common name: Milkwood
Family: Apocynaceae
Origin: Australia
Similar plants: Alstonia actinophylla (Milkwood)
Link to this plant:
https://toptropicals.com/catalog/uid/alstonia_actinophylla.htm