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.
Octoknemaceae Octoknemaceae is a monotypic family of flowering plants endemic to continental Africa. The APG III system of 2009 and the APG II system of 2003 (unchanged from the APG system of 1998), do not recognize this family. The family is recognized by the Angiosperm Phylogeny Website, based on work since the publication of the APG III system.