Kingdom: Plantae (2635)
Phylum: Tracheophyta (2573)
Class: Magnoliopsida (2146)
Order: Gentianales (112)
Family: Rubiaceae (61)(family description)
Genus: Hexasepalum (1)
Epithet: teres (Walter) J.H.Kirkbr. (1)
Synonym: Diodia teres Walter
teres => rounded off, smooth, round