Kingdom: Plantae (2629)
Phylum: Tracheophyta (2532)
Class: Magnoliopsida (2141)
Order: Gentianales (112)
Family: Apocynaceae (37)(family description)
Genus: Melodinus (1)
Epithet: cochinchinensis (Lour.) Merr. (3)
cochinchinensis => from Cochinchina (old name for various southern regions of Vietnam)