Kingdom: Plantae (2586)
Phylum: Tracheophyta (2483)
Class: Magnoliopsida (2101)
Order: Gentianales (110)
Family: Apocynaceae (36)(family description)
Genus: Melodinus (1)
Epithet: cochinchinensis (Lour.) Merr. (3)
cochinchinensis => from Cochinchina (old name for various southern regions of Vietnam)