Kingdom: Plantae (2653)
Phylum: Tracheophyta (2566)
Class: Magnoliopsida (2162)
Order: Gentianales (112)
Family: Apocynaceae (37)(family description)
Genus: Melodinus (1)
Epithet: cochinchinensis (Lour.) Merr. (4)
cochinchinensis => from Cochinchina (old name for various southern regions of Vietnam)