Botanical names: Limahlania crenulata, Fagraea crenulata
Common names: Cabbage Tree, Malabera
Family: Gentianaceae (Formerly:Loganiaceae)
Origin: Malaysia
Similar plants: Limahlania crenulata (Cabbage Tree)
Link to this plant:
https://toptropicals.com/catalog/uid/fagraea_crenulata.htm