Amsonia (Amsonia

Walter) - a genus of plants belonging t o the family toinowatych. Occurs in the wild in the eastern parts of Asia and North America. There are approximately 20 species. A msonia species is typical tabernaemontana Walter [1]. Cluster Pla ntae (Magnoliophyta Cronquist), subclass Magnoliophyta amp Frohne, U. Jensen ex Reveal Batsch class Magnoliopsida Subclassis jasnotowe (Lamiidae Takht. Ex Reveal), genus Gentiananae Thorne ex Reveal Government Gentianales (Apocynales Bromhead), the family Apocynaceae (Apocynaceae Juss .