Classification
Kingdom: Plantae (2624)
Phylum: Tracheophyta (2527)
Class: Magnoliopsida (2136)
Order: Gentianales (112)
Family: Gentianaceae (7)(family description)
Genus: Blackstonia (1)
Epithet: perfoliata (L.) Huds. (2)
Synonym: Centaurium perfoliatum (L.) E.H.L.Krause
perfoliata => leaves surrounding or embracing the stem
perfoliatum => with leaf-like appendage through which the stalk passes