Are Hellebore and Aethionema from the same flowering plant families?
Aethionema Aethionema syn. "Eunomia" is a genus of flowering plants, within the family Brassicaceae, subfamily Brassicoideae. The genus is collectively known as the stonecresses. They originate from sunny limestone mountainsides in Europe and West Asia, especially Turkey.
Oresbia Oresbia heterocarpa is the perennial plant that is the only species in the South African native genus Oresbia and member of the tribe Senecioneae in the family Asteraceae.