Kingdom: Plantae (2635)
Phylum: Tracheophyta (2573)
Class: Magnoliopsida (2146)
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)