"Chelidonium majus, commonly known as greater celandine, is a perennial herbaceous plant in the poppy family (Papaveraceae). It is one of two species in the genus Chelidonium. It is native to Europe and western Asia and introduced widely in North America.
While greater celandine belongs to the poppy family, lesser celandine (Ficaria verna) belongs to the buttercup family." - (en.wikipedia.org 03.04.2021)
en