Classification
Kingdom: Plantae (2635)
Phylum: Tracheophyta (2573)
Class: Magnoliopsida (2146)
Order: Gentianales (112)
Family: Apocynaceae (37)(family description)
Genus: Vincetoxicum (1)
Epithet: hirundinaria Medik. (1)
Synonyms: Alexitoxicon cretaceum (Pobed.) Pobed., Antitoxicum laxum (Bartl.) Pobed., Antitoxicum officinale (Moench) Pobed., Antitoxicum stauropolitanum (Pobed.) Pobed.
laxum => loose, slack, relaxed
officinale => of practical use to man; official species in commerce, especially for medicinal purposes